CISA Advisories

CISA and the Group of Seven (G7) Cyber Security Working Group released Preparing for the Post-Quantum Era: A Call to Action highlighting the urgent need for organizations and governments to begin transitioning to post-quantum cryptography (PQC) to protect sensitive data, authentication systems, and critical assets from emerging quantum computing threats. The G7 Cyber Security Working Group’s call to action outlines five priorities for a successful transition to PQC: Raising awareness of quantum risks and the importance of PQC; Developing national strategies that support PQC adoption and integration; Advancing research and development for quantum-safe technologies; Fostering public-private partnerships to share expertise and resources; and Integrating PQC into cybersecurity requirements and procurement processes. Please share your thoughts! We welcome your feedback. CISA PRODUCT SURVEY

View CSAF Summary Successful exploitation of these vulnerabilities could result in an attacker accessing sensitive credentials, disrupting connected infrastructure, or manipulating physical equipment, which could present a physical safety risk. The following versions of Tycon Systems TPDIN-Monitor-WEB2 (Update A) are affected: TPDIN-Monitor-WEB2 <2.4.5 (CVE-2026-61884, CVE-2026-55985) CVSS Vendor Equipment Vulnerabilities v3 9.8 Tycon Systems Tycon Systems TPDIN-Monitor-WEB2 Missing Authentication for Critical Function, Cleartext Storage of Sensitive Information Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-61884 The device ships without HTTP credentials configured, intended for an installer to set them on first use. On firmware 2.4.4 and earlier, a unit left in this unconfigured state serves the web management interface without requiring any login. An attacker with network access to such a unit can reach full device controls, including power relay management, device reboot, remote access service configuration, and network settings, which could allow disruption of connected infrastructure or physical damage to equipment. View CVE Details Affected Products Tycon Systems TPDIN-Monitor-WEB2 (Update A) Vendor: Tycon Systems Product Version: Tycon Systems TPDIN-Monitor-WEB2: <2.4.5 Product Status: known_affected Remediations Vendor fix Tycon Systems has released firmware 2.4.5, which resolves this vulnerability by requiring an administrator username and password to be set before the web interface is served. Further inquiries can be directed to security@tyconsystems.com. Mitigation Tycon Systems recommends setting an administrative username and strong password on the Network Configuration page and confirming in a private browser window that a login is required, for units still running firmware 2.4.4 or earlier. Repeat this after any factory reset. Mitigation Tycon Systems recommends not exposing the web interface to the Internet, as it is HTTP only. The unit should be kept on a private network, behind a firewall or VPN. Relevant CWE: CWE-306 Missing Authentication for Critical Function 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-2026-55985 The device's web management interface stores and displays system credentials in cleartext on a certain configuration page accessible to authenticated users. Any party with access to the administrative dashboard can immediately read these credentials, which may be used to compromise other systems on the local network. View CVE Details Affected Products Tycon Systems TPDIN-Monitor-WEB2 (Update A) Vendor: Tycon Systems Product Version: Tycon Systems TPDIN-Monitor-WEB2: <2.4.5 Product Status: known_affected Remediations Vendor fix Tycon Systems has released firmware 2.4.5, which resolves this vulnerability by removing cleartext credentials from the web interface response. Further inquiries can be directed to security@tyconsystems.com. Mitigation Tycon Systems recommends changing any factory-default SNMP community strings and the Telnet password if they were left at shipped values. Leave Telnet disabled unless required. Mitigation Tycon Systems recommends using a dedicated mail account for device alerts, rather than an account also used for other sensitive purposes, to limit exposure if credentials are compromised. Relevant CWE: CWE-312 Cleartext Storage of Sensitive Information Metrics CVSS Version Base Score Base Severity Vector String 3.1 4.3 MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N 4.0 5.3 MEDIUM CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N Acknowledgments Abdiwelli Guled 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. No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time. Revision History Initial Release Date: 2026-07-21 Date Revision Summary 2026-07-21 1 Initial Publication 2026-09-03 2 Updated affected version range and vulnerability details based on vendor input. Legal Notice and Terms of Use

View CSAF Summary Successful exploitation of these vulnerabilities could allow for an attacker to perform a man-in-the-middle (MitM) attack, cause a factory reset, wipe credentials, or retrieve sensitive information. The following versions of Tycon Systems TPDIN-Monitor-WEB3 are affected: TPDIN-Monitor-WEB3 <=2.2.9 (CVE-2026-77847, CVE-2026-82712, CVE-2026-82684) CVSS Vendor Equipment Vulnerabilities v3 8.8 Tycon Systems Tycon Systems TPDIN-Monitor-WEB3 Use of Hard-coded Credentials, Cross-Site Request Forgery (CSRF), Missing Authorization Background Critical Infrastructure Sectors: Critical Manufacturing, Energy Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-77847 Tycon Systems TPDIN-Monitor-WEB3 versions 2.2.9 and prior are vulnerable to a Use of Hard-coded Credential vulnerability. This could allow an attacker to intercept sensitive information or credentials. View CVE Details Affected Products Tycon Systems TPDIN-Monitor-WEB3 Vendor: Tycon Systems Product Version: Tycon Systems TPDIN-Monitor-WEB3: <=2.2.9 Product Status: known_affected Remediations Vendor fix Tycon Systems has released TPDIN-Monitor-WEB3 Firmware v2.4.2. Mitigation Units already running v2.4.2, for subsequent updates (signed container): https://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2.tfw Mitigation All units currently in the field, including the v2.2.9 covered by this report (legacy Intel HEX): https://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2T.hex Mitigation A unit running v2.2.9 installs the .hex build directly and arrives at v2.4.2 in a single step; no intermediate version is required. The signed .tfw container cannot be read by a v2.2.9 updater, which accepts only Intel HEX, so the .hex artifact is the one every deployed unit needs. Mitigation For more information, contact Tycon Systems: https://www.tyconsystems.com/contact Relevant CWE: CWE-798 Use of Hard-coded Credentials 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:H/I:N/A:N 4.0 7.1 HIGH CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N CVE-2026-82712 Tycon Systems TPDIN-Monitor-WEB3 versions 2.2.9 and prior are vulnerable to a Cross-Site Request Forgery vulnerability. This could allow an attacker to perform state changing operations on the device. View CVE Details Affected Products Tycon Systems TPDIN-Monitor-WEB3 Vendor: Tycon Systems Product Version: Tycon Systems TPDIN-Monitor-WEB3: <=2.2.9 Product Status: known_affected Remediations Vendor fix Tycon Systems has released TPDIN-Monitor-WEB3 Firmware v2.4.2. Mitigation Units already running v2.4.2, for subsequent updates (signed container): https://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2.tfw Mitigation All units currently in the field, including the v2.2.9 covered by this report (legacy Intel HEX): https://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2T.hex Mitigation A unit running v2.2.9 installs the .hex build directly and arrives at v2.4.2 in a single step; no intermediate version is required. The signed .tfw container cannot be read by a v2.2.9 updater, which accepts only Intel HEX, so the .hex artifact is the one every deployed unit needs. Mitigation For more information, contact Tycon Systems: https://www.tyconsystems.com/contact Relevant CWE: CWE-352 Cross-Site Request Forgery (CSRF) Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.8 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H 4.0 8.6 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-82684 Tycon Systems TPDIN-Monitor-WEB3 versions 2.2.9 and prior are vulnerable to a Missing Authorization vulnerability. This could allow an attacker to extract system credentials, configurations, or flash contents. View CVE Details Affected Products Tycon Systems TPDIN-Monitor-WEB3 Vendor: Tycon Systems Product Version: Tycon Systems TPDIN-Monitor-WEB3: <=2.2.9 Product Status: known_affected Remediations Vendor fix Tycon Systems has released TPDIN-Monitor-WEB3 Firmware v2.4.2. Mitigation Units already running v2.4.2, for subsequent updates (signed container): https://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2.tfw Mitigation All units currently in the field, including the v2.2.9 covered by this report (legacy Intel HEX): https://firm.tyconsystems.com/tpdin-monitor-web3-v2/TPDIN-MONITOR-WEB3-V2_v2.4.2T.hex Mitigation A unit running v2.2.9 installs the .hex build directly and arrives at v2.4.2 in a single step; no intermediate version is required. The signed .tfw container cannot be read by a v2.2.9 updater, which accepts only Intel HEX, so the .hex artifact is the one every deployed unit needs. Mitigation For more information, contact Tycon Systems: https://www.tyconsystems.com/contact 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 Abdiwelli Guled 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: 2026-09-03 Date Revision Summary 2026-09-03 1 Initial Publication Legal Notice and Terms of Use

Developed by CISA, the Federal Bureau of Investigation, and international partners, this guidance describes how organizations can plan and execute clear, timely, accurate, and audience-appropriate communications during IT and operational technology (OT) outages. Whether caused by cyber threat actors, human error, equipment failure, or natural hazards, service outages can create disruption and societal panic even without speculation from end users and the public as added factors. Outages at one organization may cascade across interconnected systems, increasing uncertainty and alarm. The guidance emphasizes clarity, accountability, and transparency as core principles and details key elements of effective crisis messaging to inform affected stakeholders and the public while aligning with legal requirements, operational security, law enforcement, and containment efforts. CISA’s CI Fortify initiative provides information and resources that help critical infrastructure organizations prepare to isolate and recover vital OT systems during a major cyber incident or crisis. Changes in service availability, whether from outages or isolation as a defensive strategy, require transparent and ongoing communication to help end users minimize operational impact, limit speculation, and preserve trust. For emergency planning purposes, critical infrastructure owners and operators should assume that telecommunications services may be disrupted or otherwise unreliable, making it crucial for organizations to have crisis communications plans in place that integrate backup communication methods and understand the type of communication they should expect from their service providers.

CISA has added seven new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-9586 Sangoma Switchvox SQL Injection Vulnerability CVE-2026-48710 Kludex Starlette HTTP Request/Response Smuggling Vulnerability CVE-2026-49869 Kestra OSS OS Command Injection Vulnerability CVE-2026-59822 BerriAI LiteLLM Improper Authentication Vulnerability CVE-2026-82329 JFrog Artifactory Improper Authentication Vulnerability CVE-2026-83548 SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability CVE-2026-83549 SonicWall SMA1000 Appliances OS Command Injection 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. 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 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 it for potential addition through CISA’s KEV Nomination Form. Potential KEV additions must have a CVE ID, evidence of exploitation, and clear mitigation guidance.

View CSAF Summary The following versions of Rockwell Automation FactoryTalk Activation Manager are affected: FactoryTalk Activation Manager V5.02_and_below (CVE-2026-16675) CVSS Vendor Equipment Vulnerabilities v3 7.8 Rockwell Automation Rockwell Automation FactoryTalk Activation Manager Improper Restriction of Excessive Authentication Attempts Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-16675 A privilege escalation vulnerability exists within FactoryTalk Activation Manager. The vulnerability stems from custom actions in the installer that spawn visible console windows running with SYSTEM privileges during installation or repair operations. An authenticated attacker with Windows credentials could hijack these console windows to obtain a SYSTEM-level command prompt, allowing full access to all files, processes, and system resources. View CVE Details Affected Products Rockwell Automation FactoryTalk Activation Manager Vendor: Rockwell Automation Product Version: Rockwell Automation FactoryTalk Activation Manager V5.02_and_below Product Status: known_affected Remediations Vendor fix Rockwell Automation recommends users update to software version V5.03. Mitigation Customers using the affected software who are not able to upgrade to one of the corrected versions should use Rockwell Automation's security best practices. Relevant CWE: CWE-307 Improper Restriction of Excessive Authentication Attempts 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 4.0 8.5 HIGH CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Acknowledgments An anonymous security researcher reported this vulnerability to Rockwell Automation, who reported it 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: 2026-09-01 Date Revision Summary 2026-09-01 1 Initial republication of Rockwell Automation advisory Legal Notice and Terms of Use

View CSAF Summary Successful exploitation of these vulnerabilities could crash the device being accessed; an out-of-bounds write condition may allow remote code execution. The following versions of Rockwell Automation Historian ME are affected: Series B 5.202 (CVE-2025-12768, CVE-2026-12661) Series C 7.101 (CVE-2025-12768, CVE-2026-12661) CVSS Vendor Equipment Vulnerabilities v3 8 Rockwell Automation Rockwell Automation Historian ME Out-of-bounds Write, Stack-based Buffer Overflow Background Critical Infrastructure Sectors: Chemical, Critical Manufacturing, Food and Agriculture, Healthcare and Public Health, Water and Wastewater Systems Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2025-12768 A security issue exists within FactoryTalk Historian Machine Edition. An attacker with low-level authentication could exploit this vulnerability to achieve remote code execution on the affected device. View CVE Details Affected Products Rockwell Automation Historian ME Vendor: Rockwell Automation Product Version: Rockwell Automation Series B: 5.202, Rockwell Automation Series C: 7.101 Product Status: known_affected Remediations Mitigation Customers using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automations security best practices found at: https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation If you have any questions regarding the security issue(s) above and how to mitigate them, contact TechConnect for help. More information can be found at: https://www.rockwellautomation.com/en-us/company/about-us/contact-us.html Mitigation If you have any questions regarding this disclosure, please contact PSIRT Email: rasecure@ra.rockwell.com Relevant CWE: CWE-787 Out-of-bounds Write Metrics CVSS Version Base Score Base Severity Vector String 3.1 8 HIGH CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H 4.0 8.6 HIGH CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-12661 A denial-of-service security issue exists within FactoryTalk Historian Machine Edition. A network adjacent attacker who is authenticated could send crafted requests to the web interface, resulting in buffer overflow conditions that may cause the device to crash and become unresponsive. View CVE Details Affected Products Rockwell Automation Historian ME Vendor: Rockwell Automation Product Version: Rockwell Automation Series B: 5.202, Rockwell Automation Series C: 7.101 Product Status: known_affected Remediations Mitigation Customers using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automations security best practices found at: https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation If you have any questions regarding the security issue(s) above and how to mitigate them, contact TechConnect for help. More information can be found at: https://www.rockwellautomation.com/en-us/company/about-us/contact-us.html Mitigation If you have any questions regarding this disclosure, please contact PSIRT Email: rasecure@ra.rockwell.com Relevant CWE: CWE-121 Stack-based Buffer Overflow Metrics CVSS Version Base Score Base Severity Vector String 3.1 4.5 MEDIUM CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H 4.0 4.8 MEDIUM CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N Acknowledgments Rockwell Automation 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: 2026-09-01 Date Revision Summary 2026-09-01 1 Initial Publication Legal Notice and Terms of Use

View CSAF Summary The following versions of Rockwell Automation Logix Platform are affected: ControlLogix 5580 <=V33, V34.011-V34.014, V35.011-V35.013, V36.011-V36.012 (CVE-2026-9637, CVE-2026-9637, CVE-2026-9637, CVE-2026-9637) CompactLogix 5380 <=V33, V34.011-V34.014, V35.011-V35.013, V36.011-V36.012 (CVE-2026-9637, CVE-2026-9637, CVE-2026-9637, CVE-2026-9637) GuardLogix 5580 <=V33, V34.011-V34.014, V35.011-V35.013, V36.011-V36.012 (CVE-2026-9637, CVE-2026-9637, CVE-2026-9637, CVE-2026-9637) Compact GuardLogix 5380 <=V33, V34.011-V34.014, V35.011-V35.013, V36.011-V36.012 (CVE-2026-9637, CVE-2026-9637, CVE-2026-9637, CVE-2026-9637) CVSS Vendor Equipment Vulnerabilities v3 7.5 Rockwell Automation Rockwell Automation Logix Platform Improper Restriction of Operations within the Bounds of a Memory Buffer Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-9637 A denial-of-service vulnerability exists in the affected Logix platforms due to improper validation of input length during CIP message processing. This can result in a major nonrecoverable fault (MNRF), requiring a power cycle to recover. View CVE Details Affected Products Rockwell Automation Logix Platform Vendor: Rockwell Automation Product Version: Rockwell Automation ControlLogix 5580 <=V33, Rockwell Automation ControlLogix 5580 V34.011-V34.014, Rockwell Automation ControlLogix 5580 V35.011-V35.013, Rockwell Automation ControlLogix 5580 V36.011-V36.012, Rockwell Automation CompactLogix 5380 <=V33, Rockwell Automation CompactLogix 5380 V34.011-V34.014, Rockwell Automation CompactLogix 5380 V35.011-V35.013, Rockwell Automation CompactLogix 5380 V36.011-V36.012, Rockwell Automation GuardLogix 5580 <=V33, Rockwell Automation GuardLogix 5580 V34.011-V34.014, Rockwell Automation GuardLogix 5580 V35.011-V35.013, Rockwell Automation GuardLogix 5580 V36.011-V36.012, Rockwell Automation Compact GuardLogix 5380 <=V33, Rockwell Automation Compact GuardLogix 5380 V34.011-V34.014, Rockwell Automation Compact GuardLogix 5380 V35.011-V35.013, Rockwell Automation Compact GuardLogix 5380 V36.011-V36.012 Product Status: known_affected Remediations Vendor fix Rockwell Automation recommends users update to firmware version V37.011. Vendor fix Rockwell Automation recommends users update to firmware version 34.015. Vendor fix Rockwell Automation recommends users update to firmware version 35.014. Vendor fix Rockwell Automation recommends users update to firmware version 36.013. Mitigation Customers using the affected software who are not able to upgrade to one of the corrected versions should use Rockwell Automation's security best practices. Relevant CWE: CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer 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 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Acknowledgments Rockwell Automation 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 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: 2026-09-01 Date Revision Summary 2026-09-01 1 Initial republication of Rockwell Automation advisory Legal Notice and Terms of Use

View CSAF Summary Successful exploitation of these vulnerabilities could allow for an attacker to escalate and execute processes with administrator privileges. The following versions of Rockwell Automation Redundancy Module Configuration Tool are affected: Redundancy Module Configuration Tool 10.00.00 (CVE-2026-9633) Redundancy Module Configuration Tool >=9.00.00|<=10.00.00 (CVE-2026-9634) CVSS Vendor Equipment Vulnerabilities v3 7.3 Rockwell Automation Rockwell Automation Redundancy Module Configuration Tool Incorrect Default Permissions Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-9633 A security issue exists within the Redundancy Module Configuration Tool. The RM3ConfigTool.exe binary searches directories in the system path for a required DLL, and one or more of these directories may be writable by standard (non administrator) users due to incorrect default permissions. If a local attacker places a malicious DLL in such a directory and an administrator subsequently runs the tool, the malicious DLL is loaded into the elevated process and executes with Administrator/SYSTEM privileges. View CVE Details Affected Products Rockwell Automation Redundancy Module Configuration Tool Vendor: Rockwell Automation Product Version: Rockwell Automation Redundancy Module Configuration Tool: 10.00.00 Product Status: known_affected Remediations Vendor fix Rockwell Automation has released Redundancy Module Configuration Tool version 10.01.00 for users to install. Mitigation Customers using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices (https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight). https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation For more information, see Rockwell Automation Security Advisories: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html. https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html Relevant CWE: CWE-276 Incorrect Default Permissions Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.3 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H 4.0 7 HIGH CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-9634 A security issue exists within the Redundancy Module Configuration Tool. The RMConfigTool.exe binary searches directories in the system path for a required DLL, and one or more of these directories may be writable by standard (non-administrator) users due to incorrect default permissions. If a local attacker places a malicious DLL in such a directory and an administrator subsequently runs the tool, the malicious DLL is loaded into the elevated process and executes with Administrator/SYSTEM privileges. View CVE Details Affected Products Rockwell Automation Redundancy Module Configuration Tool Vendor: Rockwell Automation Product Version: Rockwell Automation Redundancy Module Configuration Tool: >=9.00.00|<=10.00.00 Product Status: known_affected Remediations Vendor fix Rockwell Automation has released Redundancy Module Configuration Tool version 10.01.00 for users to install. Mitigation Customers using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices (https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight). https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation For more information, see Rockwell Automation Security Advisories: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html. https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html Relevant CWE: CWE-276 Incorrect Default Permissions Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.3 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H 4.0 7 HIGH CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Acknowledgments Rockwell Automation 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. These vulnerabilities are not exploitable remotely. Revision History Initial Release Date: 2026-09-01 Date Revision Summary 2026-09-01 1 Initial Republication of Rockwell Automation Security Advisory Legal Notice and Terms of Use

View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to cause a denial-of-service condition on the affected product. The following versions of Rockwell Automation RSLinx Classic are affected: RSLinx Classic <=4.50 (CVE-2026-9621, CVE-2026-9622, CVE-2026-9624, CVE-2026-9625) CVSS Vendor Equipment Vulnerabilities v3 8.6 Rockwell Automation Rockwell Automation RSLinx Classic Integer Overflow or Wraparound, Integer Underflow (Wrap or Wraparound), Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-9621 A denial-of-service security issue exists within RSLinx Classic. The security issue stems from improper handling of a malformed packet. A crafted CIP packet can cause the RSLinx Classic service to crash, requiring a restart of the service to recover. View CVE Details Affected Products Rockwell Automation RSLinx Classic Vendor: Rockwell Automation Product Version: Rockwell Automation RSLinx Classic: <=4.50 Product Status: known_affected Remediations Vendor fix Rockwell Automation has corrected the vulnerabilities in RSLinx Classic version 4.60. Mitigation Users using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight. https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation For more information, see Rockwell Automation Security Advisories: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html. https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html Relevant CWE: CWE-190 Integer Overflow or Wraparound Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.6 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H 4.0 9.2 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H CVE-2026-9622 A denial-of-service security issue exists within RSLinx Classic. A crafted CIP packet targeting the Forward Close service can cause the RSLinx Classic service to crash, requiring a restart of the service to recover. View CVE Details Affected Products Rockwell Automation RSLinx Classic Vendor: Rockwell Automation Product Version: Rockwell Automation RSLinx Classic: <=4.50 Product Status: known_affected Remediations Vendor fix Rockwell Automation has corrected the vulnerabilities in RSLinx Classic version 4.60. Mitigation Users using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight. https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation For more information, see Rockwell Automation Security Advisories: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html. https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html Relevant CWE: CWE-191 Integer Underflow (Wrap or Wraparound) Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.6 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H 4.0 9.2 CRITICAL CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H CVE-2026-9624 A denial-of-service security issue exists within RSLinx Classic. A crafted CIP packet can cause the RSLinx Classic service to crash due to insufficient data length validation, requiring a restart of the service to recover. View CVE Details Affected Products Rockwell Automation RSLinx Classic Vendor: Rockwell Automation Product Version: Rockwell Automation RSLinx Classic: <=4.50 Product Status: known_affected Remediations Vendor fix Rockwell Automation has corrected the vulnerabilities in RSLinx Classic version 4.60. Mitigation Users using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight. https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation For more information, see Rockwell Automation Security Advisories: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html. https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html Relevant CWE: CWE-191 Integer Underflow (Wrap or Wraparound) 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 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2026-9625 A denial-of-service security issue exists within RSLinx Classic. A crafted CIP packet with an oversized embedded message request can cause the RSLinx Classic service to crash, requiring a restart of the service to recover. View CVE Details Affected Products Rockwell Automation RSLinx Classic Vendor: Rockwell Automation Product Version: Rockwell Automation RSLinx Classic: <=4.50 Product Status: known_affected Remediations Vendor fix Rockwell Automation has corrected the vulnerabilities in RSLinx Classic version 4.60. Mitigation Users using the affected software, who are not able to upgrade to one of the corrected versions, should use Rockwell Automation's security best practices https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight. https://support.rockwellautomation.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight Mitigation For more information, see Rockwell Automation Security Advisories: https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html. https://www.rockwellautomation.com/en-us/trust-center/security-advisories.html Relevant CWE: CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') 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 4.0 8.7 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N Acknowledgments Rockwell Automation 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: 2026-09-01 Date Revision Summary 2026-09-01 1 Initial Republication of Rockwell Automation Advisory Legal Notice and Terms of Use