CISA Advisories

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-20262 Cisco Catalyst SD-WAN Manager Directory or Path Traversal Vulnerability CVE-2026-54420 LiteSpeed cPanel Plugin UNIX Symbolic Link (Symlink) Following Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies, updating BOD 22-01. BOD 26-04 reinforces the importance of the KEV catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s Known Exploited Vulnerabilities (KEV) catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied. While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV catalog vulnerabilities. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria. Aware of an exploited vulnerability not currently listed in the KEV catalog? Submit for potential addition: KEV Nomination Form. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance.

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-35273 Oracle PeopleSoft Enterprise PeopleTools Missing Authentication for Critical Function Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies, updating BOD 22-01. BOD 26-04 reinforces the importance of the KEV catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s Known Exploited Vulnerabilities (KEV) catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied. While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV catalog vulnerabilities. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria. Aware of an exploited vulnerability not currently listed in the KEV catalog? Submit for potential addition: KEV Nomination Form. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance.

View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to obtain hard-coded credentials, gain access to telemetry data, and potentially send operational commands to the robot fleet. The following versions of Yarbo Android/iOS Mobile Application and Cloud Infrastructure are affected: Yarbo Android/IOS mobile application Cloud MQTT infrastructure vers:all/* CVSS Vendor Equipment Vulnerabilities v3 9.8 Yarbo Yarbo Android/iOS Mobile Application and Cloud Infrastructure Use of Hard-coded Credentials, Missing Authorization Background Critical Infrastructure Sectors: Commercial Facilities Countries/Areas Deployed: Worldwide Company Headquarters Location: China Vulnerabilities Expand All + CVE-2026-10557 The Yarbo Android and iOS applications contain hard-coded MQTT broker credentials that are identical for all users and all devices. These credentials are embedded in the application binary and are readily extractable via APK decompilation. The credentials provide access to cloud MQTT brokers carrying real-time telemetry for the entire global Yarbo robot fleet. They allow both wildcard subscription to all robot telemetry topics and publishing to any robot's command topic using only the robot's serial number.. View CVE Details Affected Products Yarbo Android/iOS Mobile Application and Cloud Infrastructure Vendor: Yarbo Product Version: Yarbo Yarbo Android/IOS mobile application: <v3.17.4, Yarbo Cloud MQTT infrastructure: vers:all/* Product Status: known_affected Remediations Mitigation Yarbo recommends users update the Yarbo mobile app to 3.17.4 or later. Server-side broker authorization will be enforced automatically upon deployment of the May 2026 update. No user action is required. Relevant CWE: CWE-798 Use of Hard-coded Credentials Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.3 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-7368 The Yarbo cloud does not enforce per-device or per-user authorization. Any client possessing valid credentials, whether the shared hard-coded credentials or legitimate per-user credentials, can subscribe to wildcard topics covering all robots globally, and can publish to any robot's command topic using only the robot's serial number (disclosed in the telemetry stream). Even after removal of hard-coded credentials from the app, a single compromised credential could still provide fleet-wide access without per-device access controls. View CVE Details Affected Products Yarbo Android/iOS Mobile Application and Cloud Infrastructure Vendor: Yarbo Product Version: Yarbo Yarbo Android/IOS mobile application: <v3.17.4, Yarbo Cloud MQTT infrastructure: vers:all/* Product Status: known_affected Remediations Mitigation Yarbo recommends users update the Yarbo mobile app to 3.17.4 or later. Server-side broker authorization will be enforced automatically upon deployment of the May 2026 update. No user action is required. Relevant CWE: CWE-862 Missing Authorization Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.1 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N 4.0 8.6 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N Acknowledgments Markus Lassfolk of Truesec reported these vulnerabilities to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of this these vulnerabilities. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. Revision History Initial Release Date: 2026-06-11 Date Revision Summary 2026-06-11 1 Initial Publication Legal Notice and Terms of Use

View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to impersonate devices, intercept or manipulate communications, harvest sensitive credentials at scale, or gain unauthorized access. The following versions of Naxclow IoT Platform are affected: Smart Doorbell X3 vers:all/* X Smart Home vers:all/* V720 vers:all/* ix cam vers:all/* CVSS Vendor Equipment Vulnerabilities v3 9.8 Naxclow Naxclow IoT Platform Authorization Bypass Through User-Controlled Key, Missing Authorization, Not Using Password Aging, Use of Hard-coded Cryptographic Key, Generation of Predictable Numbers or Identifiers, Insertion of Sensitive Information into Externally-Accessible File or Directory Background Critical Infrastructure Sectors: Commercial Facilities Countries/Areas Deployed: Worldwide Company Headquarters Location: China Vulnerabilities Expand All + CVE-2026-42947 A flaw in Naxclow's platform's onboarding workflow allows an attacker to replay a confirm-then-bind sequence to silently reassign a device to an arbitrary account. Because the affected endpoints validate request signatures but do not confirm legitimate ownership, an attacker with any account can take over a device without user interaction while the device remains online and unaware. View CVE Details Affected Products Naxclow IoT Platform Vendor: Naxclow Product Version: Naxclow Smart Doorbell X3: vers:all/*, Naxclow X Smart Home: vers:all/*, Naxclow V720: vers:all/*, Naxclow ix cam: vers:all/* Product Status: known_affected Remediations Mitigation Naxclow did not respond to CISA's attempts to coordinate these vulnerabilities. Users should contact Naxclow for more information. Relevant CWE: CWE-639 Authorization Bypass Through User-Controlled Key Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-50108 The Naxclow platform API that returns device relay registration details exposes a persistent credential without verifying that the requester is the legitimate device or owner. An actor able to present a platform-valid request signature can retrieve credentials for arbitrary devices and register on the relay as that device, enabling interception and disruption of its communications. View CVE Details Affected Products Naxclow IoT Platform Vendor: Naxclow Product Version: Naxclow Smart Doorbell X3: vers:all/*, Naxclow X Smart Home: vers:all/*, Naxclow V720: vers:all/*, Naxclow ix cam: vers:all/* Product Status: known_affected Remediations Mitigation Naxclow did not respond to CISA's attempts to coordinate these vulnerabilities. Users should contact Naxclow for more information. Relevant CWE: CWE-862 Missing Authorization Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVE-2026-50101 Naxclow devices use a server-side, per-device relay credential that never rotates and is re-issued to the device on each boot. Because this credential remains valid indefinitely and cannot be reset or revoked by the legitimate owner, any party that obtains it through any exposure path can maintain persistent access to the device's relay channel. This enables long-term impersonation or interception, even after factory resets or re-onboarding. View CVE Details Affected Products Naxclow IoT Platform Vendor: Naxclow Product Version: Naxclow Smart Doorbell X3: vers:all/*, Naxclow X Smart Home: vers:all/*, Naxclow V720: vers:all/*, Naxclow ix cam: vers:all/* Product Status: known_affected Remediations Mitigation Naxclow did not respond to CISA's attempts to coordinate these vulnerabilities. Users should contact Naxclow for more information. Relevant CWE: CWE-262 Not Using Password Aging Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.1 HIGH CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.2 CRITICAL CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-28742 Naxclow devices use a uniform request-signing scheme based on a hard-coded, platform-wide salt embedded in every firmware image. Once this salt is recovered from any device, an attacker can generate valid signatures for arbitrary device or account operations due to the absence of per-device keys, server-side nonce tracking, or replay protections. Combined with the system's use of plain HTTP for control-plane traffic, the construction enables broad request forgery and impersonation across the platform. View CVE Details Affected Products Naxclow IoT Platform Vendor: Naxclow Product Version: Naxclow Smart Doorbell X3: vers:all/*, Naxclow X Smart Home: vers:all/*, Naxclow V720: vers:all/*, Naxclow ix cam: vers:all/* Product Status: known_affected Remediations Mitigation Naxclow did not respond to CISA's attempts to coordinate these vulnerabilities. Users should contact Naxclow for more information. Relevant CWE: CWE-321 Use of Hard-coded Cryptographic Key Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 4.0 9.2 CRITICAL CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-42932 Naxclow device identifiers use fixed manufacturing prefixes combined with sequential counters, producing a fully predictable and enumerable identifier space. Because the platform also exposes an endpoint that reveals the current identifier high-water mark, the active fleet can be enumerated. View CVE Details Affected Products Naxclow IoT Platform Vendor: Naxclow Product Version: Naxclow Smart Doorbell X3: vers:all/*, Naxclow X Smart Home: vers:all/*, Naxclow V720: vers:all/*, Naxclow ix cam: vers:all/* Product Status: known_affected Remediations Mitigation Naxclow did not respond to CISA's attempts to coordinate these vulnerabilities. Users should contact Naxclow for more information. Relevant CWE: CWE-340 Generation of Predictable Numbers or Identifiers Metrics CVSS Version Base Score Base Severity Vector String 3.1 5.3 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N 4.0 6.9 MEDIUM CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVE-2026-50244 The Naxclow platform exposes a registration endpoint that accepts signed requests containing a batch prefix and an arbitrary caller-supplied account identifier, without validating any ownership relationship. Each call mints a new sequential device identifier and returns the current high-water counter value for the batch, allowing callers to measure and enumerate the active device space. The endpoint's behavior enables precise fleet enumeration. View CVE Details Affected Products Naxclow IoT Platform Vendor: Naxclow Product Version: Naxclow Smart Doorbell X3: vers:all/*, Naxclow X Smart Home: vers:all/*, Naxclow V720: vers:all/*, Naxclow ix cam: vers:all/* Product Status: known_affected Remediations Mitigation Naxclow did not respond to CISA's attempts to coordinate these vulnerabilities. Users should contact Naxclow for more information. Relevant CWE: CWE-862 Missing Authorization Metrics CVSS Version Base Score Base Severity Vector String 3.1 5.3 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N 4.0 6.9 MEDIUM CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N CVE-2026-50099 During WiFi association, Naxclow device firmware prints the host network's SSID, PSK, and negotiated WPA keys in cleartext to an exposed UART console on production hardware. The UART pads are labeled, run with default serial settings, and drop to an interactive RT-Thread shell that permits arbitrary memory reads, enabling full firmware extraction. An attacker with brief physical access, common for outdoor-mounted devices, can therefore recover WiFi credentials and bootstrap firmware-side attacks. View CVE Details Affected Products Naxclow IoT Platform Vendor: Naxclow Product Version: Naxclow Smart Doorbell X3: vers:all/*, Naxclow X Smart Home: vers:all/*, Naxclow V720: vers:all/*, Naxclow ix cam: vers:all/* Product Status: known_affected Remediations Mitigation Naxclow did not respond to CISA's attempts to coordinate these vulnerabilities. Users should contact Naxclow for more information. Relevant CWE: CWE-538 Insertion of Sensitive Information into Externally-Accessible File or Directory Metrics CVSS Version Base Score Base Severity Vector String 3.1 4.6 MEDIUM CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 4.0 5.1 MEDIUM CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Acknowledgments Temuri Takalandze reported these vulnerabilities to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. Revision History Initial Release Date: 2026-06-11 Date Revision Summary 2026-06-11 1 Initial Publication Legal Notice and Terms of Use

View CSAF Summary Successful exploitation of these vulnerabilities could allow a remote unauthenticated attacker to gain unauthorized access to live video feeds, retrieve sensitive visual information from affected premises, and obtain administrative control of the device. The following versions of Brickcom Cameras are affected: Brickcom Cube 3.2.3.5.6 Brickcom Dome 3.2.3.5.6 Brickcom Bullet 3.2.3.5.6 Brickcom Box 3.2.3.5.6 CVSS Vendor Equipment Vulnerabilities v3 7.7 Brickcom Brickcom Cameras Missing Authentication for Critical Function, Use of Default Credentials Background Critical Infrastructure Sectors: Commercial Facilities, Critical Manufacturing, Financial Services, Healthcare and Public Health Countries/Areas Deployed: Worldwide Company Headquarters Location: Taiwan Vulnerabilities Expand All + CVE-2026-50245 The affected product allows unauthenticated access to live snapshot images via the /ONVIF endpoint and no authentication is required to retrieve still images from the camera feed. View CVE Details Affected Products Brickcom Cameras Vendor: Brickcom Product Version: Brickcom Brickcom Cube: 3.2.3.5.6, Brickcom Brickcom Dome: 3.2.3.5.6, Brickcom Brickcom Bullet: 3.2.3.5.6, Brickcom Brickcom Box: 3.2.3.5.6 Product Status: known_affected Remediations Mitigation Brickcom did not respond to CISAs request for coordination. Users are encouraged to reach out to Brickcom for support https://www.brickcom.com/case/ https://www.brickcom.com/case/ Relevant CWE: CWE-306 Missing Authentication for Critical Function Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.7 HIGH CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N 4.0 8.3 HIGH CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N CVE-2026-50005 The affected product ships with default credentials that allows any unauthenticated remote attacker to silently access camera feeds. View CVE Details Affected Products Brickcom Cameras Vendor: Brickcom Product Version: Brickcom Brickcom Cube: 3.2.3.5.6, Brickcom Brickcom Dome: 3.2.3.5.6, Brickcom Brickcom Bullet: 3.2.3.5.6, Brickcom Brickcom Box: 3.2.3.5.6 Product Status: known_affected Remediations Mitigation Brickcom did not respond to CISAs request for coordination. Users are encouraged to reach out to Brickcom for support https://www.brickcom.com/case/ https://www.brickcom.com/case/ Relevant CWE: CWE-1392 Use of Default Credentials Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.7 HIGH CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N 4.0 8.3 HIGH CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N Acknowledgments CISA discovered the PoCs (Proof of Concept) as authored by parsa rezaie khiabanloo Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. These vulnerabilities are not exploitable remotely. Revision History Initial Release Date: 2026-06-11 Date Revision Summary 2026-06-11 1 Initial Publication Legal Notice and Terms of Use

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-10520 Ivanti Sentry OS Command Injection Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies, updating BOD 22-01. BOD 26-04 reinforces the importance of the KEV catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s Known Exploited Vulnerabilities (KEV) catalog on publicly exposed assets that grant total control of the asset post-exploitation, while deferring action for lower-risk vulnerabilities. BOD 26-04 further establishes basic expectations for when agencies must check whether threat actors compromised the system before the patch was applied. While BOD 26-04 applies only to FCEB agencies, CISA encourages all organizations to adopt risk-based vulnerability management and prioritize remediation of KEV catalog vulnerabilities. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria. Aware of an exploited vulnerability not currently listed in the KEV catalog? Submit for potential addition: KEV Nomination Form. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance.

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-7473 Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability CVE-2026-11645 Google Chromium V8 Out-of-Bounds Read and Write Vulnerability CVE-2026-20245 Cisco Catalyst SD-WAN Manager Improper Encoding or Escaping of Output Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

View CSAF Summary KACO blueplanet Inverters contain multiple vulnerabilities that could allow an attacker to derive the credentials from the devices serial number and misuse them to gain unauthorized access. KACO new energy GmbH has released new versions for several affected products and recommends to update to the latest versions. KACO new energy GmbH is preparing further fix versions and recommends countermeasures for products where fixes are not, or not yet available. The following versions of Siemens KACO Blueplanet Inverters are affected: blueplanet 100 NX3 M8 vers:all/* blueplanet 100 TL3 GEN2 vers:all/*, vers:intdot/<6.1.4.9 blueplanet 105 TL3 vers:all/* blueplanet 105 TL3 GEN2 vers:all/*, vers:intdot/<6.1.4.9 blueplanet 110 TL3 vers:all/* blueplanet 125 NX3 M11 vers:all/* blueplanet 125 TL3 vers:all/* blueplanet 125 TL3 GEN2 vers:all/*, vers:intdot/<6.1.4.9 blueplanet 137 TL3 vers:all/* blueplanet 150 TL3 vers:all/* blueplanet 150 TL3 GEN2 vers:all/*, vers:intdot/<6.1.4.9 blueplanet 155 TL3 vers:all/* blueplanet 155 TL3 GEN2 vers:all/*, vers:intdot/<6.1.4.9 blueplanet 165 TL3 vers:all/* blueplanet 165 TL3 GEN2 vers:all/*, vers:intdot/<6.1.4.9 blueplanet 25.0 NX3-33.0 NX3 vers:all/* blueplanet 3.0 NX3-20.0 NX3 vers:all/* blueplanet 3.0 TL3-60.0 TL3 vers:all/* blueplanet 3.0-5.0 NX1 vers:all/* blueplanet 360 NX3 M6 vers:all/* blueplanet 50.0 NX3-60.0 NX3 vers:all/* blueplanet 87.0 TL3 vers:all/* blueplanet 87.0 TL3 GEN2 vers:all/*, vers:intdot/<6.1.4.9 blueplanet 92.0 TL3 vers:all/* blueplanet 92.0 TL3 GEN2 vers:all/*, vers:intdot/<6.1.4.9 blueplanet gridsafe 110 TL3-S vers:intdot/<3.91, vers:all/* blueplanet gridsafe 137 TL3-S vers:intdot/<3.91, vers:all/* blueplanet gridsafe 92.0 TL3-S vers:all/*, vers:intdot/<3.91 blueplanet hybrid 10.0 TL3 vers:all/* blueplanet hybrid 6.0 NH3-12.0 NH3 vers:all/* CVSS Vendor Equipment Vulnerabilities v3 8.3 Siemens Siemens KACO Blueplanet Inverters Use of Hard-coded Cryptographic Key, Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') Background Critical Infrastructure Sectors: Energy Countries/Areas Deployed: Worldwide Company Headquarters Location: Germany Vulnerabilities Expand All + CVE-2025-40946 A CRC16-based algorithm for generating Technical Service credentials could allow an attacker to derive the credentials from the devices serial number and misuse them to gain unauthorized access. View CVE Details Affected Products Siemens KACO Blueplanet Inverters Vendor: Siemens Product Version: blueplanet 100 NX3 M8, blueplanet 100 TL3 GEN2, blueplanet 105 TL3, blueplanet 105 TL3 GEN2, blueplanet 110 TL3, blueplanet 125 NX3 M11, blueplanet 125 TL3, blueplanet 125 TL3 GEN2, blueplanet 137 TL3, blueplanet 150 TL3, blueplanet 150 TL3 GEN2, blueplanet 155 TL3, blueplanet 155 TL3 GEN2, blueplanet 165 TL3, blueplanet 165 TL3 GEN2, blueplanet 3.0 TL3-60.0 TL3, blueplanet 87.0 TL3, blueplanet 87.0 TL3 GEN2, blueplanet 92.0 TL3, blueplanet 92.0 TL3 GEN2, blueplanet gridsafe 110 TL3-S, blueplanet gridsafe 137 TL3-S, blueplanet gridsafe 92.0 TL3-S Product Status: known_affected, known_not_affected Remediations No fix planned Currently no fix is planned None available Currently no fix is available Vendor fix Update to V3.91 or later version https://kaco-newenergy.com/service/mykacocom-customer-portal Vendor fix Update to V6.1.4.9 or later version https://kaco-newenergy.com/service/mykacocom-customer-portal Relevant CWE: CWE-321 Use of Hard-coded Cryptographic Key Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.3 HIGH CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H CVE-2026-41125 Improper neutralization of special elements used in an sql command ('sql injection') in KACO Meteor server allows an authorized attacker to elevate privileges over a local network. View CVE Details Affected Products Siemens KACO Blueplanet Inverters Vendor: Siemens Product Version: blueplanet 100 NX3 M8, blueplanet 100 TL3 GEN2, blueplanet 105 TL3, blueplanet 105 TL3 GEN2, blueplanet 110 TL3, blueplanet 125 NX3 M11, blueplanet 125 TL3, blueplanet 125 TL3 GEN2, blueplanet 137 TL3, blueplanet 150 TL3, blueplanet 150 TL3 GEN2, blueplanet 155 TL3, blueplanet 155 TL3 GEN2, blueplanet 165 TL3, blueplanet 165 TL3 GEN2, blueplanet 87.0 TL3, blueplanet 87.0 TL3 GEN2, blueplanet 92.0 TL3, blueplanet 92.0 TL3 GEN2, blueplanet gridsafe 110 TL3-S, blueplanet gridsafe 137 TL3-S, blueplanet gridsafe 92.0 TL3-S Product Status: known_affected, known_not_affected Remediations None available Currently no fix is available Relevant CWE: CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') Metrics CVSS Version Base Score Base Severity Vector String 3.1 6 MEDIUM CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:L/I:H/A:H Acknowledgments Siemens ProductCERT reported these vulnerabilities to CISA. Ruben Santamarta of Reversemode reported these vulnerabilities to Siemens General Recommendations Operators of critical power systems (e.g. TSOs or DSOs) worldwide are usually required by regulations to build resilience into the power grids by applying multi-level redundant secondary protection schemes. It is therefore recommended that the operators check whether appropriate resilient protection measures are in place. The risk of cyber incidents impacting the grid's reliability can thus be minimized by virtue of the grid design. Siemens strongly recommends applying the provided security updates using the corresponding tooling and documented procedures made available with the product. If supported by the product, an automated means to apply the security updates across multiple product instances may be used. Siemens strongly recommends prior validation of any security update before being applied, and supervision by trained staff of the update process in the target environment. As a general security measure Siemens strongly recommends to protect network access with appropriate mechanisms (e.g. firewalls, segmentation, VPN). It is advised to configure the environment according to our operational guidelines in order to run the devices in a protected IT environment. Recommended security guidelines can be found at: https://www.siemens.com/gridsecurity Additional Resources For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories Terms of Use The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use. Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability. Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolate them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. Advisory Conversion Disclaimer This ICSA is a verbatim republication of Siemens ProductCERT SSA-545643 from a direct conversion of the vendor's Common Security Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please contact Siemens ProductCERT directly for any questions regarding this advisory. Revision History Initial Release Date: 2026-05-12 Date Revision Summary 2026-05-12 1 Publication Date 2026-06-09 2 Initial CISA Republication of Siemens ProductCERT SSA-545643 advisory Legal Notice and Terms of Use

View CSAF Summary Schneider Electric is aware of its vulnerability in its EcoStruxure Panel Server offer. The EcoStruxure Panel Server is a high performance, modular gateway with enhanced cybersecurity that provides easy and fast connections to multiple concurrent edge control or cloud applications. Failure to apply the remediations provided below may risk unauthorized authentication, which could lead to access to sensitive information. The following versions of Schneider Electric EcoStruxure Panel Server are affected: EcoStruxure Panel Server PAS800 vers:intdot/<=002.005.000 EcoStruxure Panel Server PAS800 vers:intdot/=002.006.000 EcoStruxure Panel Server PAS800V2 vers:intdot/<=002.005.000 EcoStruxure Panel Server PAS800V2 vers:intdot/=002.006.000 EcoStruxure Panel Server PAS600 vers:intdot/<=002.005.000 EcoStruxure Panel Server PAS600 vers:intdot/=002.006.000 EcoStruxure Panel Server PAS600V2 vers:intdot/<=002.005.000 EcoStruxure Panel Server PAS600V2 vers:intdot/=002.006.000 EcoStruxure Panel Server PAS400 vers:intdot/<=002.005.000 EcoStruxure Panel Server PAS400 vers:intdot/=002.006.000 CVSS Vendor Equipment Vulnerabilities v3 7.5 Schneider Electric Schneider Electric EcoStruxure Panel Server Initialization of a Resource with an Insecure Default Background Critical Infrastructure Sectors: Commercial Facilities, Critical Manufacturing, Energy Countries/Areas Deployed: Worldwide Company Headquarters Location: France Vulnerabilities Expand All + CVE-2026-6866 CWE-1188 Initialization of a Resource with an Insecure Default vulnerability exists that could cause unauthorized disclosure of sensitive information when credentials revert to initial settings in rare circumstances, enabling unauthorized authentication using known credentials View CVE Details Affected Products Schneider Electric EcoStruxure Panel Server Vendor: Schneider Electric Product Version: EcoStruxure Panel Server PAS800 Versions 002.005.000 and prior, EcoStruxure Panel Server PAS800V2 Versions 002.005.000 and prior, EcoStruxure Panel Server PAS600 Versions 002.005.000 and prior, EcoStruxure Panel Server PAS600V2 Versions 002.005.000 and prior, EcoStruxure Panel Server PAS400 Versions 002.005.000 and prior Product Status: fixed, known_affected Remediations Vendor fix Version 002.006.000 of EcoStruxure Panel Server includes a fix for this vulnerability and is available for download here: • https://www.se.com/ww/en/download/document/PAS800_Fir mware_Package/ • Reboot needed: Yes https://www.se.com/ww/en/download/document/PAS800_Firmware_Package/ Vendor fix Version 002.006.000 of EcoStruxure Panel Server includes a fix for this vulnerability and is available for download here: • https://www.se.com/ww/en/download/document/PAS800V2_F irmware_Package/ • Reboot needed: Yes https://www.se.com/ww/en/download/document/PAS800V2_Firmware_Package/ Vendor fix Version 002.006.000 of EcoStruxure Panel Server includes a fix for this vulnerability and is available for download here: • https://www.se.com/ww/en/download/document/PAS600_Fir mware_Package/ • Reboot needed: Yes https://www.se.com/ww/en/download/document/PAS600_Firmware_Package/ Vendor fix Version 002.006.000 of EcoStruxure Panel Server includes a fix for this vulnerability and is available for download here: • https://www.se.com/ww/en/download/document/PAS600V2_ Firmware_Package/ • Reboot needed: Yes https://www.se.com/ww/en/download/document/PAS600V2_Firmware_Package/ Vendor fix Version 002.006.000 of EcoStruxure Panel Server includes a fix for this vulnerability and is available for download here: • https://www.se.com/ww/en/download/document/PAS400_Fir mware_Package/ • Reboot needed: Yes https://www.se.com/ww/en/download/document/PAS400_Firmware_Package/ Relevant CWE: CWE-1188 Initialization of a Resource with an Insecure Default Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Acknowledgments Schneider Electric CPCERT reported this vulnerability to CISA. A Schneider Electric Partner reported this vulnerability to Schneider Electric. General Security Recommendations We strongly recommend the following industry cybersecurity best practices. * Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network. * Install physical controls so no unauthorized personnel can access your industrial control and safety systems, components, peripheral equipment, and networks. * Place all controllers in locked cabinets and never leave them in the “Program” mode. * Never connect programming software to any network other than the network intended for that device. * Scan all methods of mobile data exchange with the isolated network such as CDs, USB drives, etc. before use in the terminals or any node connected to these networks. * Never allow mobile devices that have connected to any other network besides the intended network to connect to the safety or control networks without proper sanitation. * Minimize network exposure for all control system devices and systems and ensure that they are not accessible from the Internet. * When remote access is required, use secure methods, such as Virtual Private Networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices. For more information refer to the Schneider Electric [Recommended Cybersecurity Best Practices](https://www.se.com/us/en/download/document/7EN52-0390/) document. For More Information This document provides an overview of the identified vulnerability or vulnerabilities and actions required to mitigate. For more details and assistance on how to protect your installation, contact your local Schneider Electric representative or Schneider Electric Industrial Cybersecurity Services: https://www.se.com/ww/en/work/solutions/cybersecurity/. These organizations will be fully aware of this situation and can support you through the process. For further information related to cybersecurity in Schneider Electric's products, visit the company's cybersecurity support portal page: https://www.se.com/ww/en/work/support/cybersecurity/overview.jsp LEGAL DISCLAIMER THIS NOTIFICATION DOCUMENT, THE INFORMATION CONTAINED HEREIN, AND ANY MATERIALS LINKED FROM IT (COLLECTIVELY, THIS “NOTIFICATION”) ARE INTENDED TO HELP PROVIDE AN OVERVIEW OF THE IDENTIFIED SITUATION AND SUGGESTED MITIGATION ACTIONS, REMEDIATION, FIX, AND/OR GENERAL SECURITY RECOMMENDATIONS AND IS PROVIDED ON AN “AS-IS” BASIS WITHOUT WARRANTY OR GUARANTEE OF ANY KIND. SCHNEIDER ELECTRIC DISCLAIMS ALL WARRANTIES RELATING TO THIS NOTIFICATION, EITHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. SCHNEIDER ELECTRIC MAKES NO WARRANTY THAT THE NOTIFICATION WILL RESOLVE THE IDENTIFIED SITUATION. IN NO EVENT SHALL SCHNEIDER ELECTRIC BE LIABLE FOR ANY DAMAGES OR LOSSES WHATSOEVER IN CONNECTION WITH THIS NOTIFICATION, INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF SCHNEIDER ELECTRIC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. YOUR USE OF THIS NOTIFICATION IS AT YOUR OWN RISK, AND YOU ARE SOLELY LIABLE FOR ANY DAMAGES TO YOUR SYSTEMS OR ASSETS OR OTHER LOSSES THAT MAY RESULT FROM YOUR USE OF THIS NOTIFICATION. SCHNEIDER ELECTRIC RESERVES THE RIGHT TO UPDATE OR CHANGE THIS NOTIFICATION AT ANY TIME AND IN ITS SOLE DISCRETION About Schneider Electric Schneider's purpose is to create Impact by empowering all to make the most of our energy and resources, bridging progress and sustainability for all. We call this Life Is On. Our mission is to be the trusted partner in Sustainability and Efficiency. We are a global industrial technology leader bringing world-leading expertise in electrification, automation and digitization to smart industries, resilient infrastructure, future-proof data centers, intelligent buildings, and intuitive homes. Anchored by our deep domain expertise, we provide integrated end-to-end lifecycle AI enabled Industrial IoT solutions with connected products, automation, software and services, delivering digital twins to enable profitable growth for our customers. We are a people company with an ecosystem of 150,000 colleagues and more than a million partners operating in over 100 countries to ensure proximity to our customers and stakeholders. We embrace diversity and inclusion in everything we do, guided by our meaningful purpose of a sustainable future for all. www.se.com Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the exploitation risk of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolate them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. Advisory Conversion Disclaimer This ICSA is a verbatim republication of Schneider Electric CPCERT SEVD-2026-132-04 from a direct conversion of the vendor's Common Security Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please contact Schneider Electric CPCERT directly for any questions regarding this advisory. Revision History Initial Release Date: 2026-05-12 Date Revision Summary 2026-05-12 1 Original Release 2026-06-09 2 Initial CISA Republication of Schneider Electric CPCERT SEVD-2026-132-04 advisory Legal Notice and Terms of Use

View CSAF Summary Schneider Electric is aware of a RADIUS protocol vulnerability affecting its Modicon Network Managed Switch product. The Modicon Network Managed Switch product provides connectivity for multiple Ethernet devices, network management, enhanced cyber security and more advanced switching features. Failure to apply the mitigation provided below may risk forgery attacks in RADIUS Protocol, which could result in modification of any valid Response (Access-Accept, Access-Reject, or Access-Challenge) to any other response which could result in the possibility of denial of service and loss of confidentiality, integrity of the devices connected to the switch. The following versions of Schneider Electric Modicon Network Managed Switches are affected: Connexium Managed Switches vers:all/* Modicon Managed Switches vers:all/* Modicon Redundancy Switches vers:all/* CVSS Vendor Equipment Vulnerabilities v3 9 Schneider Electric Schneider Electric Modicon Network Managed Switches Improper Enforcement of Message Integrity During Transmission in a Communication Channel Background Critical Infrastructure Sectors: Commercial Facilities, Energy, Food and Agriculture, Government Services and Facilities, Transportation Systems, Water and Wastewater Countries/Areas Deployed: Worldwide Company Headquarters Location: France Vulnerabilities Expand All + CVE-2024-3596 Additional information about CVE-2024-3596 can be found here:https://www.cve.org/CVERecord?id=CVE-2024-3596 View CVE Details Affected Products Schneider Electric Modicon Network Managed Switches Vendor: Schneider Electric Product Version: Connexium Managed Switches All Versions, Modicon Managed Switches All Versions, Modicon Redundancy Switches All Versions Product Status: known_affected Remediations Mitigation The default RADIUS configuration is not vulnerable. However, if the RADIUS Server Message Authenticator option is disabled, the product becomes vulnerable. We advise keeping this parameter in its default (enabled) state. This parameter can be configured via CLI and SNMP:TCSESM* CLI: radius server msgauthMIB: hmAgentRadiusServerMsgAuth Mitigation The default RADIUS configuration is not vulnerable. However, if the RADIUS Server Message Authenticator option is disabled, the product becomes vulnerable. We advise keeping this parameter in its default (enabled) state. This parameter can be configured via CLI and SNMP:MCSESM*, MCSESP* CLI: radius server auth modify msgauth MIB: hm2AgentRadiusServerMsgAuth Mitigation The default RADIUS configuration is not vulnerable. However, if the RADIUS Server Message Authenticator option is disabled, the product becomes vulnerable. We advise keeping this parameter in its default (enabled) state. This parameter can be configured via CLI and SNMP:MCSESR* CLI: radius server auth modify msgauth MIB: hm2AgentRadiusServerMsgAuth Relevant CWE: CWE-924 Improper Enforcement of Message Integrity During Transmission in a Communication Channel Metrics CVSS Version Base Score Base Severity Vector String 3.1 9 CRITICAL CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H Acknowledgments Schneider Electric CPCERT reported this vulnerability to CISA. General Security Recommendations We strongly recommend the following industry cybersecurity best practices. * Locate control and safety system networks and remote devices behind firewalls and isolate them from the business network. * Install physical controls so no unauthorized personnel can access your industrial control and safety systems, components, peripheral equipment, and networks. * Place all controllers in locked cabinets and never leave them in the “Program” mode. * Never connect programming software to any network other than the network intended for that device. * Scan all methods of mobile data exchange with the isolated network such as CDs, USB drives, etc. before use in the terminals or any node connected to these networks. * Never allow mobile devices that have connected to any other network besides the intended network to connect to the safety or control networks without proper sanitation. * Minimize network exposure for all control system devices and systems and ensure that they are not accessible from the Internet. * When remote access is required, use secure methods, such as Virtual Private Networks (VPNs). Recognize that VPNs may have vulnerabilities and should be updated to the most current version available. Also, understand that VPNs are only as secure as the connected devices. For more information refer to the Schneider Electric [Recommended Cybersecurity Best Practices](https://www.se.com/us/en/download/document/7EN52-0390/) document. For More Information This document provides an overview of the identified vulnerability or vulnerabilities and actions required to mitigate. For more details and assistance on how to protect your installation, contact your local Schneider Electric representative or Schneider Electric Industrial Cybersecurity Services: https://www.se.com/ww/en/work/solutions/cybersecurity/. These organizations will be fully aware of this situation and can support you through the process. For further information related to cybersecurity in Schneider Electric's products, visit the company's cybersecurity support portal page: https://www.se.com/ww/en/work/support/cybersecurity/overview.jsp LEGAL DISCLAIMER THIS NOTIFICATION DOCUMENT, THE INFORMATION CONTAINED HEREIN, AND ANY MATERIALS LINKED FROM IT (COLLECTIVELY, THIS “NOTIFICATION”) ARE INTENDED TO HELP PROVIDE AN OVERVIEW OF THE IDENTIFIED SITUATION AND SUGGESTED MITIGATION ACTIONS, REMEDIATION, FIX, AND/OR GENERAL SECURITY RECOMMENDATIONS AND IS PROVIDED ON AN “AS-IS” BASIS WITHOUT WARRANTY OR GUARANTEE OF ANY KIND. SCHNEIDER ELECTRIC DISCLAIMS ALL WARRANTIES RELATING TO THIS NOTIFICATION, EITHER EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. SCHNEIDER ELECTRIC MAKES NO WARRANTY THAT THE NOTIFICATION WILL RESOLVE THE IDENTIFIED SITUATION. IN NO EVENT SHALL SCHNEIDER ELECTRIC BE LIABLE FOR ANY DAMAGES OR LOSSES WHATSOEVER IN CONNECTION WITH THIS NOTIFICATION, INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF SCHNEIDER ELECTRIC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. YOUR USE OF THIS NOTIFICATION IS AT YOUR OWN RISK, AND YOU ARE SOLELY LIABLE FOR ANY DAMAGES TO YOUR SYSTEMS OR ASSETS OR OTHER LOSSES THAT MAY RESULT FROM YOUR USE OF THIS NOTIFICATION. SCHNEIDER ELECTRIC RESERVES THE RIGHT TO UPDATE OR CHANGE THIS NOTIFICATION AT ANY TIME AND IN ITS SOLE DISCRETION About Schneider Electric Schneider's purpose is to create Impact by empowering all to make the most of our energy and resources, bridging progress and sustainability for all. We call this Life Is On. Our mission is to be the trusted partner in Sustainability and Efficiency. We are a global industrial technology leader bringing world-leading expertise in electrification, automation and digitization to smart industries, resilient infrastructure, future-proof data centers, intelligent buildings, and intuitive homes. Anchored by our deep domain expertise, we provide integrated end-to-end lifecycle AI enabled Industrial IoT solutions with connected products, automation, software and services, delivering digital twins to enable profitable growth for our customers. We are a people company with an ecosystem of 150,000 colleagues and more than a million partners operating in over 100 countries to ensure proximity to our customers and stakeholders. We embrace diversity and inclusion in everything we do, guided by our meaningful purpose of a sustainable future for all. www.se.com Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the exploitation risk of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolate them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. Advisory Conversion Disclaimer This ICSA is a verbatim republication of Schneider Electric CPCERT SEVD-2026-104-02 from a direct conversion of the vendor's Common Security Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please contact Schneider Electric CPCERT directly for any questions regarding this advisory. Revision History Initial Release Date: 2026-04-14 Date Revision Summary 2026-04-14 1 Original Release 2026-06-09 2 Initial CISA Republication of Schneider Electric CPCERT SEVD-2026-104-02 advisory Legal Notice and Terms of Use

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-42271 BerriAI LiteLLM Command Injection Vulnerability CVE-2026-50751 Check Point Security Gateway Improper Authentication Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-28318 SolarWinds Serv-U Uncontrolled Resource Consumption Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

View CSAF Summary Successful exploitation of this vulnerability could allow a local attacker to gain unauthorized access to SOAP methods, resulting in a disruption of operations. The following versions of NAVTOR NavBox are affected: NavBox 4.16.1.20 (CVE-2026-21404) CVSS Vendor Equipment Vulnerabilities v3 6.3 NAVTOR NAVTOR NavBox Use of Hard-coded Credentials Background Critical Infrastructure Sectors: Information Technology Countries/Areas Deployed: Worldwide Company Headquarters Location: Norway Vulnerabilities Expand All + CVE-2026-21404 NAVTOR NavBox through version 4.16.1.20 contains hard-coded credentials within its Windows Communication Foundation (SOAP) implementation. If the SOAP functionality is enabled, a local attacker can extract credentials to bypass the intended transfer workflow. Successful authentication against the SOAP interface grants access to privileged WCF methods, enabling an attacker to write or overwrite files within application-defined paths. View CVE Details Affected Products NAVTOR NavBox Vendor: NAVTOR Product Version: NAVTOR NavBox: 4.16.1.20 Product Status: known_affected Remediations Vendor fix NAVTOR has released a patch for NavBox in April 2026. Version 4.17.2.6 and later includes the fix. Users that have an active NavBox connection will automatically be kept up to date with the latest version. No user action required. Relevant CWE: CWE-798 Use of Hard-coded Credentials Metrics CVSS Version Base Score Base Severity Vector String 3.1 6.3 MEDIUM CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H 4.0 5.8 MEDIUM CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N Acknowledgments Cydome Security Ltd reported this vulnerability to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. CISA also recommends users take the following measures to protect themselves from social engineering attacks: Do not click web links or open attachments in unsolicited email messages. Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams. Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks. No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. This vulnerability is not exploitable remotely. This vulnerability has a high attack complexity. Revision History Initial Release Date: 2026-06-04 Date Revision Summary 2026-06-04 1 Initial Publication Legal Notice and Terms of Use

View CSAF Summary B&R is aware of a vulnerability in the product versions listed as affected in the advisory. An attacker who successfully exploits this vulnerability could make the OPC-UA server of the product inaccessible. The following versions of B&R PPT30 Operating System are affected: PPT30 Operating System <1.8.0, 1.8.0 (CVE-2025-11482) CVSS Vendor Equipment Vulnerabilities v3 7.5 B&R Industrial Automation GmbH B&R PPT30 Operating System Allocation of Resources Without Limits or Throttling Background Critical Infrastructure Sectors: Commercial Facilities, Critical Manufacturing, Energy, Transportation Systems, Water and Wastewater Countries/Areas Deployed: Worldwide Company Headquarters Location: Switzerland Vulnerabilities Expand All + CVE-2025-11482 An Allocation of Resources Without Limits or Throttling vulnerability in the OPC-UA Server used in PPT30 Operating System versions before 1.8.0 may be used by an unauthenticated network-based at-tacker to permanently prevent legitimate users from interacting with the service. View CVE Details Affected Products B&R PPT30 Operating System Vendor: B&R Industrial Automation GmbH Product Version: B&R Industrial Automation GmbH PPT30 Operating System <1.8.0 Product Status: fixed, known_affected Remediations Vendor fix The problem is corrected in the following product versions: PPT30 Operating System 1.8.0. The OPC-UA server is not activated by default. B&R recommends that customers with the OPC-UA Server enabled to install the update at their earliest opportunity. The process to install updates is described in the user manual. The step to identify the installed product version is described in the user manual. Mitigation The optional OPC-UA server is not activated by default. The OPC-UA server shall only be activated, if required. PPT30 products are intended to operate at Levels 1 and 2 of the ABB ICS Cyber Security Reference Architecture. To restrict access to the OPC-UA server exclusively to trusted IP addresses, configure the South Firewall and/or the Control Network Firewall accordingly, and properly segment the network where the PPT30 operates. Additionally, ensure that the physical network interfaces assigned to the same logical network as the PPT30 are accessible only to authorized personnel. Refer to section “General security recommendations” for further advise on how to keep your system secure. Relevant CWE: CWE-770 Allocation of Resources Without Limits or Throttling Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C Acknowledgments ABB PSIRT reported this vulnerability to CISA. Notice The information in this document is subject to change without notice, and should not be construed as a commitment by B&R. B&R provides no warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, for the information contained in this document, and assumes no responsibility for any errors that may appear in this document. In no event shall B&R or any of its suppliers be liable for direct, indirect, special, incidental or consequential damages of any nature or kind arising from the use of this document, or from the use of any hardware or software described in this document, even if B&R or its suppliers have been advised of the possibility of such damages. This document and parts hereof must not be reproduced or copied without written permission from B&R, and the contents hereof must not be imparted to a third party nor used for any unauthorized purpose. All rights to registrations and trademarks reside with their respective owners. Frequently asked questions What causes the vulnerability? - The vulnerability is caused by insufficient handling of resources by the OPC-UA Server used by the PPT30 Operating System. What is PPT 30 Operating System - The PPT30 Operating System is the firmware required to use the B&R PPT30 hardware products. What might an attacker use the vulnerability to do? - An attacker who successfully exploited this vulnerability could cause other users are no longer able to connect to the OPC-UA server on impacted devices. How could an attacker exploit the vulnerability? - An attacker could exploit the vulnerability by sending messages to an affected system node. This would require that the attacker has access to the system network, by connecting to the network either directly or through a wrongly configured or penetrated firewall, or that he installs malicious software on a system node or otherwise infects the network with malicious software. Recommended practices help mitigate such attacks, see section Mitigating Factors above. Could the vulnerability be exploited remotely? - Yes, an attacker who has network access to an affected system node could exploit this vulnerability. Recommended practices include that process control systems are physically protected, have no direct connections to the Internet, and are separated from other networks by means of a firewall system that has a minimal number of ports exposed. When this security advisory was issued, had this vulnerability been publicly disclosed? - No, B&R discovered the vulnerabilities through its own security analysis. When this security advisory was issued, had B&R received any reports that this vulnerability was being exploited? - No, B&R had not received any information indicating that this vulnerability had been exploited when this security advisory was originally issued Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the exploitation risk of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolate them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. Advisory Conversion Disclaimer This ICSA is a verbatim republication of ABB PSIRT SA25P006 from a direct conversion of the vendor's Common Security Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please contact ABB PSIRT directly for any questions regarding this advisory. Revision History Initial Release Date: 2026-05-26 Date Revision Summary 2026-05-26 1 Initial version. 2026-06-04 2 Initial CISA Republication of ABB PSIRT SA25P006 advisory Legal Notice and Terms of Use

View CSAF Summary Hitachi Energy is aware of vulnerabilities that affect RTU500 product versions listed in this document. If exploited, these vulnerabilities primarily impact product availability, with potential secondary impacts on confidentiality and integrity. Please refer to the Recommended Immediate Actions for information about the mitigation/remediation. The following versions of Hitachi Energy RTU500 are affected: RTU500 series CMU Firmware vers:RTU500_series_CMU_Firmware/>=12.7.1|<=12.7.7, vers:RTU500_series_CMU_Firmware/>=13.5.1|<=13.5.4, vers:RTU500_series_CMU_Firmware/>=13.6.1|<=13.6.3, vers:RTU500_series_CMU_Firmware/>=13.7.1|<=13.7.8, 13.8.1, vers:RTU500_series_CMU_Firmware/>=13.7.1|<=13.7.7 (CVE-2025-69421, CVE-2026-24515, CVE-2026-25210, CVE-2026-32776, CVE-2026-32777, CVE-2026-32778, CVE-2026-8479, CVE-2025-69421, CVE-2026-24515, CVE-2026-25210, CVE-2026-32776, CVE-2026-32777, CVE-2026-32778, CVE-2026-8479, CVE-2025-69421, CVE-2026-24515, CVE-2026-25210, CVE-2026-32776, CVE-2026-32777, CVE-2026-32778, CVE-2026-8479, CVE-2025-69421, CVE-2026-24515, CVE-2026-25210, CVE-2026-32776, CVE-2026-32777, CVE-2026-32778, CVE-2025-69421, CVE-2026-24515, CVE-2026-25210, CVE-2026-32776, CVE-2026-32777, CVE-2026-32778, CVE-2026-8479, CVE-2026-8479) CVSS Vendor Equipment Vulnerabilities v3 7.8 Hitachi Energy Hitachi Energy RTU500 NULL Pointer Dereference, Integer Overflow or Wraparound, Loop with Unreachable Exit Condition ('Infinite Loop') Background Critical Infrastructure Sectors: Dams, Energy, Water and Wastewater Countries/Areas Deployed: Worldwide Company Headquarters Location: Switzerland Vulnerabilities Expand All + CVE-2025-69421 CWE-476: NULL Pointer Dereference. Issue summary: Processing a malformed PKCS#12 file can trigger a NULL pointer dereference in the PKCS12_item_decrypt_d2i_ex() function. Impact summary: A NULL pointer dereference can trigger a crash which leads to Denial of Service for an application processing PKCS#12 files. The PKCS12_item_decrypt_d2i_ex() function does not check whether the oct parameter is NULL before dereferencing it. When called from PKCS12_unpack_p7encdata() with a malformed PKCS#12 file, this parameter can be NULL, causing Denial of Service impact. The vulnerability is limited to Denial of Service and cannot be escalated to achieve code execution or memory disclosure. Product is affected, if a privileged user uploads a malformed PKCS#12 certificate via web interface or if PKI client functionality is configured. View CVE Details Affected Products Hitachi Energy RTU500 Vendor: Hitachi Energy Product Version: RTU500 series CMU Firmware version 12.7.1 – 12.7.7, RTU500 series CMU Firmware version 13.5.1 – 13.5.4, RTU500 series CMU Firmware version 13.6.1 – 13.6.3, RTU500 series CMU Firmware version 13.7.1 – 13.7.8, RTU500 series CMU Firmware version 13.8.1 Product Status: known_affected Remediations Vendor fix Update to CMU Firmware version 13.8.2 Mitigation Follow general mitigation factors/workarounds Vendor fix Update to CMU Firmware version 13.7.9 (when available) or 13.8.2 Relevant CWE: CWE-476 NULL Pointer Dereference Metrics CVSS Version Base Score Base Severity Vector String 3.1 6.5 MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-24515 CWE-476: NULL Pointer Dereference. In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data, causing Denial of Service impact. Product is only affected if IEC 61850 functionality is configured. View CVE Details Affected Products Hitachi Energy RTU500 Vendor: Hitachi Energy Product Version: RTU500 series CMU Firmware version 12.7.1 – 12.7.7, RTU500 series CMU Firmware version 13.5.1 – 13.5.4, RTU500 series CMU Firmware version 13.6.1 – 13.6.3, RTU500 series CMU Firmware version 13.7.1 – 13.7.8, RTU500 series CMU Firmware version 13.8.1 Product Status: known_affected Remediations Vendor fix Update to CMU Firmware version 13.8.2 Mitigation Follow general mitigation factors/workarounds Vendor fix Update to CMU Firmware version 13.7.9 (when available) or 13.8.2 Relevant CWE: CWE-476 NULL Pointer Dereference Metrics CVSS Version Base Score Base Severity Vector String 3.1 2.5 LOW CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L CVE-2026-25210 CWE-190: Integer Overflow or Wraparound. In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation, primarily causing Denial of Service and potentially confidentiality and integrity impact to the product. Product is only affected if IEC 61850 functionality is configured. View CVE Details Affected Products Hitachi Energy RTU500 Vendor: Hitachi Energy Product Version: RTU500 series CMU Firmware version 12.7.1 – 12.7.7, RTU500 series CMU Firmware version 13.5.1 – 13.5.4, RTU500 series CMU Firmware version 13.6.1 – 13.6.3, RTU500 series CMU Firmware version 13.7.1 – 13.7.8, RTU500 series CMU Firmware version 13.8.1 Product Status: known_affected Remediations Vendor fix Update to CMU Firmware version 13.8.2 Mitigation Follow general mitigation factors/workarounds Vendor fix Update to CMU Firmware version 13.7.9 (when available) or 13.8.2 Relevant CWE: CWE-190 Integer Overflow or Wraparound Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.8 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-32776 CWE-476: NULL Pointer Dereference. libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content, causing Denial of Service impact. Product is only affected if IEC 61850 functionality is configured. View CVE Details Affected Products Hitachi Energy RTU500 Vendor: Hitachi Energy Product Version: RTU500 series CMU Firmware version 12.7.1 – 12.7.7, RTU500 series CMU Firmware version 13.5.1 – 13.5.4, RTU500 series CMU Firmware version 13.6.1 – 13.6.3, RTU500 series CMU Firmware version 13.7.1 – 13.7.8, RTU500 series CMU Firmware version 13.8.1 Product Status: known_affected Remediations Vendor fix Update to CMU Firmware version 13.8.2 Mitigation Follow general mitigation factors/workarounds Vendor fix Update to CMU Firmware version 13.7.9 (when available) or 13.8.2 Relevant CWE: CWE-476 NULL Pointer Dereference Metrics CVSS Version Base Score Base Severity Vector String 3.1 5.5 MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-32777 CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop'). libexpat before 2.7.5 allows an infinite loop while parsing DTD content, causing Denial of Service impact. Product is only affected if IEC 61850 functionality is configured. View CVE Details Affected Products Hitachi Energy RTU500 Vendor: Hitachi Energy Product Version: RTU500 series CMU Firmware version 12.7.1 – 12.7.7, RTU500 series CMU Firmware version 13.5.1 – 13.5.4, RTU500 series CMU Firmware version 13.6.1 – 13.6.3, RTU500 series CMU Firmware version 13.7.1 – 13.7.8, RTU500 series CMU Firmware version 13.8.1 Product Status: known_affected Remediations Vendor fix Update to CMU Firmware version 13.8.2 Mitigation Follow general mitigation factors/workarounds Vendor fix Update to CMU Firmware version 13.7.9 (when available) or 13.8.2 Relevant CWE: CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop') Metrics CVSS Version Base Score Base Severity Vector String 3.1 5.5 MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-32778 CWE-476: NULL Pointer Dereference. libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier out-of-memory condition, causing Denial of Service impact. Product is only affected if IEC 61850 functionality is configured. View CVE Details Affected Products Hitachi Energy RTU500 Vendor: Hitachi Energy Product Version: RTU500 series CMU Firmware version 12.7.1 – 12.7.7, RTU500 series CMU Firmware version 13.5.1 – 13.5.4, RTU500 series CMU Firmware version 13.6.1 – 13.6.3, RTU500 series CMU Firmware version 13.7.1 – 13.7.8, RTU500 series CMU Firmware version 13.8.1 Product Status: known_affected Remediations Vendor fix Update to CMU Firmware version 13.8.2 Mitigation Follow general mitigation factors/workarounds Vendor fix Update to CMU Firmware version 13.7.9 (when available) or 13.8.2 Relevant CWE: CWE-476 NULL Pointer Dereference Metrics CVSS Version Base Score Base Severity Vector String 3.1 5.5 MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-8479 CWE-476: NULL Pointer Dereference. IEC 60870-5-104 used in bidirectional mode is vulnerable for a NULL pointer dereferencing, if a specially crafted sequence of messages is sent for a certain time, causing Denial of Service impact. Product is only affected if IEC 60870-5-104 functionality in bidirectional mode (BCI) is configured. View CVE Details Affected Products Hitachi Energy RTU500 Vendor: Hitachi Energy Product Version: RTU500 series CMU Firmware version 12.7.1 – 12.7.7, RTU500 series CMU Firmware version 13.5.1 – 13.5.4, RTU500 series CMU Firmware version 13.6.1 – 13.6.3, RTU500 series CMU Firmware version 13.7.1 – 13.7.7, RTU500 series CMU Firmware version 13.8.1 Product Status: known_affected Remediations Vendor fix Update to CMU Firmware version 13.8.2 Mitigation Follow general mitigation factors/workarounds Vendor fix Update to CMU Firmware version 13.7.8 Relevant CWE: CWE-476 NULL Pointer Dereference Metrics CVSS Version Base Score Base Severity Vector String 3.1 6.5 MEDIUM CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 4.0 6.9 MEDIUM CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Acknowledgments Hitachi Energy Internal Team reported this vulnerability to CISA. Notice The information in this document is subject to change without notice and should not be construed as a commitment by Hitachi Energy. Hitachi Energy provides no warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, for the information contained in this document, and assumes no responsibility for any errors that may appear in this document. In no event shall Hitachi Energy or any of its suppliers be liable for direct, indirect, special, incidental or consequential damages of any nature or kind arising from the use of this document, or from the use of any hardware or software described in this document, even if Hitachi Energy or its suppliers have been advised of the possibility of such damages. This document and parts hereof must not be reproduced or copied without written permission from Hitachi Energy and the contents hereof must not be imparted to a third party nor used for any unauthorized purpose. All rights to registrations and trademarks reside with their respective owners. Support For additional information and support please contact your product provider or Hitachi Energy service organization. For contact information, see https://www.hitachienergy.com/contact-us/ for Hitachi Energy contact-centers. General Mitigation Factors Recommended security practices and firewall configurations can help protect a process control network from attacks that originate from outside the network. Such practices include that process control systems are physically protected from direct access by unauthorized personnel, have no direct connections to the Internet, and are separated from other networks by means of a firewall system that has a minimal number of ports exposed, and others that have to be evaluated case by case. Process control systems should not be used for Internet surfing, instant messaging, or receiving e-mails. Portable computers and removable storage media should be carefully scanned for viruses before they are connected to a control system. Proper password policies and processes should be followed. Additional information on Industrial Control Systems Cybersecurity Best Practices can be found in the following Hitachi Energy Cybersecurity Notification. Cybersecurity Advisory - Industrial Control Systems Cybersecurity Best Practices SSVC SSVCv2/E:N/A:N/2026-05-26T08:50:36Z/ Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability. Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolate them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. Advisory Conversion Disclaimer This ICSA is a verbatim republication of Hitachi Energy PSIRT 8DBD000252 from a direct conversion of the vendor's Common Security Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please contact Hitachi Energy PSIRT directly for any questions regarding this advisory. Revision History Initial Release Date: 2026-05-26 Date Revision Summary 2026-05-26 1 Initial public release 2026-06-04 2 Initial CISA Republication of Hitachi Energy PSIRT 8DBD000252 advisory Legal Notice and Terms of Use

View CSAF Summary Hitachi Energy is aware of a buffer overflow vulnerability that affects MACH HiDraw product versions listed in this document. Successful exploitation of this vulnerability could lead to a buffer overflow condition, potentially resulting in application outages (denial of service) and possible arbitrary code execution. Please refer to the Recommended Immediate Actions for information about the mitigation/remediation. The following versions of Hitachi Energy MACH HiDraw are affected: MACH HiDraw vers:MACH_HiDraw/<=9.22 (CVE-2026-7310) CVSS Vendor Equipment Vulnerabilities v3 5.5 Hitachi Energy Hitachi Energy MACH HiDraw Heap-based Buffer Overflow Background Critical Infrastructure Sectors: Dams, Energy, Transportation Systems Countries/Areas Deployed: Worldwide Company Headquarters Location: Switzerland Vulnerabilities Expand All + CVE-2026-7310 A heap-based buffer overflow vulnerability exists in XML parser functionality in the HiDraw. An authenticated malicious user with local access can exploit this vulnerability using a specially crafted XML file which may lead to memory corruption and potential arbitrary code execution. Successful exploitation could result in application crashes (denial of service) and compromise the confidentiality and integrity of the affected system. View CVE Details Affected Products Hitachi Energy MACH HiDraw Vendor: Hitachi Energy Product Version: MACH HiDraw version 9.22 and prior Product Status: known_affected Remediations Vendor fix Fixed in version 9.23. Due to the complexity of individual implementation of the project, contact local account team for further information on possible upgrades. Mitigation Hitachi's General Mitigation Factors/Workarounds: Recommended security practices and firewall configurations can help protect a process control network from attacks that originate from outside the network. Such practices include that process control systems are physically protected from direct access by unauthorized personnel, have no direct connections to the Internet, and are separated from other networks by means of a firewall system that has a minimal number of ports exposed, and others that have to be evaluated case by case. Process control systems should not be used for Internet surfing, instant messaging, or receiving e-mails. Portable computers and removable storage media should be carefully scanned for viruses before they are connected to a control system. Proper password policies and processes should be followed. Relevant CWE: CWE-122 Heap-based Buffer Overflow Metrics CVSS Version Base Score Base Severity Vector String 3.1 5.5 MEDIUM CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:H 4.0 4.4 MEDIUM CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N Acknowledgments Hitachi Energy Internal Team reported this vulnerability to CISA. Notice The information in this document is subject to change without notice and should not be construed as a commitment by Hitachi Energy. Hitachi Energy provides no warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, for the information contained in this document, and assumes no responsibility for any errors that may appear in this document. In no event shall Hitachi Energy or any of its suppliers be liable for direct, indirect, special, incidental or consequential damages of any nature or kind arising from the use of this document, or from the use of any hardware or software described in this document, even if Hitachi Energy or its suppliers have been advised of the possibility of such damages. This document and parts hereof must not be reproduced or copied without written permission from Hitachi Energy and the contents hereof must not be imparted to a third party nor used for any unauthorized purpose. All rights to registrations and trademarks reside with their respective owners. Support For additional information and support please contact your product provider or Hitachi Energy service organization. For contact information, see https://www.hitachienergy.com/contact-us/ for Hitachi Energy contact-centers. General Mitigation Factors Recommended security practices and firewall configurations can help protect a process control network from attacks that originate from outside the network. Such practices include that process control systems are physically protected from direct access by unauthorized personnel, have no direct connections to the Internet, and are separated from other networks by means of a firewall system that has a minimal number of ports exposed, and others that have to be evaluated case by case. Process control systems should not be used for Internet surfing, instant messaging, or receiving e-mails. Portable computers and removable storage media should be carefully scanned for viruses before they are connected to a control system. Proper password policies and processes should be followed. Additional information on Industrial Control Systems Cybersecurity Best Practices can be found in the following Hitachi Energy Cybersecurity Notification. Cybersecurity Advisory - Industrial Control Systems Cybersecurity Best Practices SSVC SSVCv2/E:N/A:N/2026-05-26T09:04:54Z/ Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the exploitation risk of these vulnerabilities. Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolate them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. Advisory Conversion Disclaimer This ICSA is a verbatim republication of Hitachi Energy PSIRT 8DBD000248 from a direct conversion of the vendor's Common Security Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please contact Hitachi Energy PSIRT directly for any questions regarding this advisory. Revision History Initial Release Date: 2026-05-26 Date Revision Summary 2026-05-26 1 Initial public release 2026-06-04 2 Initial CISA Republication of Hitachi Energy PSIRT 8DBD000248 advisory Legal Notice and Terms of Use

View CSAF Summary Hitachi Energy is aware of vulnerabilities that affect ITT600 Explorer product versions listed in this document. These vulnerabilities can be exploited to carry out Denial of Service (DoS) attack on the product. The vulnerabilities only affect Hitachi Energy Integrated Testing Tool ITT600 SA Explorer without affecting IEC 61850 system endpoints. Please refer to the Recommended Immediate Actions for information about the mitigation/remediation. The following versions of Hitachi Energy ITT600 Explorer are affected: ITT600 Explorer vers:ITT600_Explorer/<2.1_SP6, vers:ITT600_Explorer/<=2.1_SP6, 2.1_SP6 (CVE-2024-8176, CVE-2025-59375) CVSS Vendor Equipment Vulnerabilities v3 7.5 Hitachi Energy Hitachi Energy ITT600 Explorer Uncontrolled Recursion, Allocation of Resources Without Limits or Throttling Background Critical Infrastructure Sectors: Energy Countries/Areas Deployed: Worldwide Company Headquarters Location: Switzerland Vulnerabilities Expand All + CVE-2024-8176 A stack overflow vulnerability exists in the libexpat library used by the IEC61850 functionality supported by the product. A malicious user with local access could use a crafted IEC61850 message to exploit the vulnerability in the libexpat library. This issue could lead to denial of service (DoS) or, in some cases, exploitable memory corruption, depending on the environment and library usage. Product is only affected if IEC61850 server simulation is used. View CVE Details Affected Products Hitachi Energy ITT600 Explorer Vendor: Hitachi Energy Product Version: ITT600 Explorer before version 2.1 SP6 Product Status: fixed, known_affected Remediations Vendor fix Update to version 2.1 SP6 HF1 Vendor fix Upgrade to version 2.2 when available Relevant CWE: CWE-674 Uncontrolled Recursion Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2025-59375 A vulnerability exists in libexpat used by the product allowing attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing. Product is only affected if IEC61850 server simulation is used. View CVE Details Affected Products Hitachi Energy ITT600 Explorer Vendor: Hitachi Energy Product Version: ITT600 Explorer version 2.1 SP6 and prior Product Status: known_affected Remediations Vendor fix Update to version 2.1 SP6 HF1 Vendor fix Upgrade to version 2.2 when available Relevant CWE: CWE-770 Allocation of Resources Without Limits or Throttling Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Acknowledgments Hitachi Energy Internal Team reported this vulnerability to CISA. Notice The information in this document is subject to change without notice and should not be construed as a commitment by Hitachi Energy. Hitachi Energy provides no warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, for the information contained in this document, and assumes no responsibility for any errors that may appear in this document. In no event shall Hitachi Energy or any of its suppliers be liable for direct, indirect, special, incidental or consequential damages of any nature or kind arising from the use of this document, or from the use of any hardware or software described in this document, even if Hitachi Energy or its suppliers have been advised of the possibility of such damages. This document and parts hereof must not be reproduced or copied without written permission from Hitachi Energy and the contents hereof must not be imparted to a third party nor used for any unauthorized purpose. All rights to registrations and trademarks reside with their respective owners. Support For additional information and support please contact your product provider or Hitachi Energy service organization. For contact information, see https://www.hitachienergy.com/contact-us/ for Hitachi Energy contact-centers. General Mitigation Factors Recommended security practices and firewall configurations can help protect a process control network from attacks that originate from outside the network. Such practices include that process control systems are physically protected from direct access by unauthorized personnel, have no direct connections to the Internet, and are separated from other networks by means of a firewall system that has a minimal number of ports exposed, and others that have to be evaluated case by case. Process control systems should not be used for Internet surfing, instant messaging, or receiving e-mails. Portable computers and removable storage media should be carefully scanned for viruses before they are connected to a control system. Proper password policies and processes should be followed. Additional information on Industrial Control Systems Cybersecurity Best Practices can be found in the following Hitachi Energy Cybersecurity Notification. Cybersecurity Advisory - Industrial Control Systems Cybersecurity Best Practices SSVC SSVCv2/E:N/A:Y/2026-05-26T08:58:04Z/ Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability. Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolate them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. Advisory Conversion Disclaimer This ICSA is a verbatim republication of Hitachi Energy PSIRT 8DBD000241 from a direct conversion of the vendor's Common Security Advisory Framework (CSAF) advisory. This is republished to CISA's website as a means of increasing visibility and is provided "as-is" for informational purposes only. CISA is not responsible for the editorial or technical accuracy of republished advisories and provides no warranties of any kind regarding any information contained within this advisory. Further, CISA does not endorse any commercial product or service. Please contact Hitachi Energy PSIRT directly for any questions regarding this advisory. Revision History Initial Release Date: 2026-05-26 Date Revision Summary 2026-05-26 1 Initial public release 2026-06-04 2 Initial CISA Republication of Hitachi Energy PSIRT 8DBD000241 advisory Legal Notice and Terms of Use

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-45247 Mirasvit Full Page Cache Warmer Deserialization of Untrusted Data Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

CISA and Partners Urge Hardening Automatic Tank Gauge Systems Overview The Cybersecurity and Infrastructure Security Agency (CISA), the Federal Bureau of Investigation (FBI), the National Security Agency (NSA), the Department of Energy (DOE), the Environmental Protection Agency (EPA), the Transportation Security Administration (TSA), the Department of Transportation (DOT), and the U.S. Department of Agriculture (USDA)—hereafter referred to as “the authoring organizations”—are aware of malicious cyber activity targeting U.S.-based automatic tank gauge (ATG) systems. ATG systems are widely used throughout the Energy, Chemical, Food and Agriculture, and Transportation Systems Sectors for automated and remote monitoring of storage tank parameters, including fuel and liquid levels, temperature, and possible leak detection. The authoring organizations urge ATG owners and operators to defend against this malicious activity by securing their ATG systems with strong passwords and by removing them from the internet to reduce public exposure. Threat The recent malicious cyber activity observed by the authoring organizations—which the U.S. government has not yet attributed to a nation-state or threat actor group—involves cyber threat actors compromising internet-exposed ATG systems and subsequently modifying them through command execution. This fact sheet provides insight into probable tactics, techniques, and procedures (TTPs) leveraged by these cyber actors, highlights risk factors associated with such compromises, and provides mitigation guidance and resources to reduce the likelihood of continued malicious activity targeting U.S.-based ATG systems. Cyber threat actors may exploit flaws in ATG systems through multiple attack vectors: Authentication Bypass and Hardcoded Credentials: Threat actors gain unauthorized access to device management interfaces. OS Command Execution and Structured Query Language (SQL) Injection: Threat actors execute arbitrary code and manipulate underlying databases. Privilege Escalation: Threat actors achieve full administrator privileges over the device application and operating system. Should a cyber threat actor exploit these vulnerabilities and compromise an ATG system, they could disrupt or manipulate the below critical functions by interfacing directly with the tank management as though they possessed legitimate physical access to the system console. The cyber threat actors could: Alter system(s) attributes, such as network settings, product identifiers, tank volumes, and pump controls; Compound operational malfunctions; components operating incorrectly could create a denial of view condition of tank fill levels, which could cause permanent damage to the tank system’s critical function; Disable system alerts, reducing an operator’s ability to detect and mitigate system issues increases the risk of environmental or physical hazards from incidents such as leaks or relay failures. Mitigations The authoring organizations recommend ATG owners immediately implement the following recommendations: Eliminate public internet exposure: Do not expose the ATG serial port (e.g., default TCP port 8001, 9001, or 10001), or other applicable web interfaces, directly to the internet. If remote access to the port is necessary, consider the following options: Restrict access: Use a firewall, access control list (ACL), or virtual private network (VPN) to restrict access. Enforce Credential Security: Change any default passwords immediately [CPG 3.A] and implement strong, unique security codes and administrative credentials for all interfaces, including the serial port. Further, implement phishing-resistant multifactor authentication wherever feasible [CPG 3.F]. If unfamiliar with these procedures, contact your ATG service provider for assistance. Apply Patches: Where possible, work with certified ATG service providers, if available, to verify compliance, update software, and apply the latest security patches from the manufacturer. Monitor and Report: Organizations should actively monitor networks for unauthorized access. Enable logging and audit and monitor logs to identify exposures of ATG device interfaces, unauthorized connections, suspicious alarms, alarm threshold modifications, tank label changes, and other system modifications [CPG 3.Q]. Report suspected incidents promptly to the CISA portal. Engage your third-party service providers to adopt CISA, FBI, EPA, and DOE’s Primary Mitigations to Reduce Cyber Threats to Operational Technology [CPG 1.E]. Resources The authoring organizations recommend ATG owners and operators review the following resources and implement suggested mitigations, where possible, to enhance their security posture. For more information on mitigating cyber threat activity targeting internet-exposed OT and ICS, see CISA, FBI, EPA, and DOE’s Primary Mitigations to Reduce Cyber Threats to Operational Technology fact sheet. For more information on vulnerabilities affecting ATG systems, see Critical Vulnerabilities Discovered in Automated Tank Gauge Systems.1 For ways to identify and remove internet-accessible assets, see CISA’s Internet Exposure Reduction Guidance web page. For more information about how organizations should design, secure, and manage connectivity in OT, see Secure connectivity principles for Operational Technology (OT). Contact Information The authoring organizations recommend U.S. organizations report suspicious or criminal activity related to information provided in this fact sheet. CISA: Contact CISA’s 24/7 Operations Center via report@cisa.gov or 888-282-0870. When available, please include the following information regarding the incident: date, time, and location of the incident; type of activity; number of people affected; type of equipment used for the activity; the name of the submitting company or organization; and a designated point of contact. For more information on reporting a cyber incident, refer to CISA’s Voluntary Cyber Incident Reporting web page. FBI: File a complaint with the Internet Crime Complaint Center (IC3) at www.ic3.gov. When available, include the following incident information: date, time, and location of the incident; type of activity; number of people affected; type of equipment used for the activity; the name of the submitting organization; and designated point of contact. EPA: Contact EPA’s Office of National Security via ONS-OC@epa.gov. DOE: Entities required to report incidents to DOE should follow established reporting requirements, as appropriate. For other energy sector inquiries, contact EnergySRMA@hq.doe.gov. Disclaimer The information in this report is being provided “as is” for informational purposes only. The authoring organizations do not endorse any commercial entity, product, company, or service, including any entities, products, or services linked within this document. Any reference to specific commercial entities, products, processes, or services by service mark, trademark, manufacturer, or otherwise, does not constitute or imply endorsement, recommendation, or favor by the authoring organizations. Notes 1 Pedro Umbelino, “Critical Vulnerabilities Discovered in Automated Tank Gauge Systems,” Bitsight, October 11, 2023, bitsight.com/blog/critical-vulnerabilities-discovered-automated-tank-gauge-systems. Please share your thoughts! We welcome your feedback. CISA PRODUCT SURVEY

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2022-0492 Linux Kernel Improper Authentication Vulnerability CVE-2025-48595 Android Framework Integer Overflow Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.