CISA Advisories

View CSAF Summary The Webhooks implementation of Siveillance Video Management Servers contains a vulnerability that could allow an authenticated remote attacker with read-only privileges to achieve full access to Webhooks API. Siemens has released new versions for the affected products and recommends to update to the latest versions. The following versions of Siemens Siveillance Video Management Servers are affected: Siveillance Video V2023 R1: All versions < V23.1 HotfixRev18 Siveillance Video V2023 R2: All versions < V23.2 HotfixRev18 Siveillance Video V2023 R3: All versions < V23.3 HotfixRev23 Siveillance Video V2024 R1: All versions < V24.1 HotfixRev14 Siveillance Video V2025: All versions < V25.1 HotfixRev8 CVSS Vendor Equipment Vulnerabilities v3 6.3 Siemens Siemens Siveillance Video Management Servers Missing Authorization Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: Germany Vulnerabilities Expand All + CVE-2025-0836 Missing Authorization vulnerability in Milestone Systems XProtect VMS allows users with read-only access to Management Server to have full read/write access to MIP Webhooks API. View CVE Details Affected Products Siemens Siveillance Video Management Servers Vendor: Siemens Product Version: Siveillance Video V2023 R1, Siveillance Video V2023 R2, Siveillance Video V2023 R3, Siveillance Video V2024 R1, Siveillance Video V2025 Product Status: known_affected Remediations Mitigation If, for any reason it is not possible to install the latest patch, we recommend auditing your role security settings and consider everyone with read-only access to the Management Server as having a full access to Webhooks configuration. Vendor fix Update to V23.1 HotfixRev18 or later version Vendor fix Update to V23.2 HotfixRev18 or later version Vendor fix Update to V23.3 HotfixRev23 or later version Vendor fix Update to V24.1 HotfixRev14 or later version Vendor fix Update to V25.1 HotfixRev8 or later version Relevant CWE: CWE-862 Missing Authorization Metrics CVSS Version Base Score Base Severity Vector String 3.1 6.3 MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L Acknowledgments Siemens ProductCERT reported this vulnerability to CISA. Milestone PSIRT reported this vulnerability to Siemens. General Recommendations As a general security measure Siemens strongly recommends to protect network access to affected products with appropriate mechanisms. It is advised to follow recommended security practices in order to run the devices in a protected IT environment. 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 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 Siemens ProductCERT SSA-625934 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: 2026-02-10 Date Revision Summary 2026-02-10 1 Publication Date 2026-02-12 2 Initial CISA Republication of Siemens ProductCERT SSA-625934 advisory Legal Notice and Terms of Use

CISA has added four new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2024-43468 Microsoft Configuration Manager SQL Injection Vulnerability CVE-2025-15556 Notepad++ Download of Code Without Integrity Check Vulnerability CVE-2025-40536 SolarWinds Web Help Desk Security Control Bypass Vulnerability CVE-2026-20700 Apple Multiple Buffer Overflow Vulnerability These types of vulnerabilities are frequent attack vectors 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 released the guidance, Barriers to Secure OT Communication: Why Johnny Can’t Authenticate, which highlights the known issues with insecure-by-design legacy industrial protocols and seeks to understand why the technology to secure these protocols is not widely adopted. CISA developed this guidance in partnership with operational technology (OT) equipment manufacturers and standard development organizations, by interviewing OT asset owners and operators to understand: What motivates owners and operators to secure communication, and What barriers prevent successful adoption from design through deployment and operations. Legacy OT protocols lack strong protections against data alteration, device impersonation, and unauthorized access, making critical infrastructure vulnerable to cyber threats. Securing these protocols requires solutions that are practical for current operators as well as cyber experts. Based on the research conducted, CISA provides recommendations for how owners and operators can avoid the negative experiences of their peers, as well as recommendations to OT manufacturers to drive sustainable, more usable capabilities. Barriers to Secure Communication: Why Johnny Can't Authenticate (PDF, 907.41 KB ) Please share your thoughts! We welcome your feedback. CISA Product Survey

The purpose of this Alert is to amplify Poland’s Computer Emergency Response Team (CERT Polska’s) Energy Sector Incident Report published on Jan. 30, 2026, and highlight key mitigations for Energy Sector stakeholders. In December 2025, a malicious cyber actor(s) targeted and compromised operational technology (OT) and industrial control systems (ICS) in Poland’s Energy Sector—specifically renewable energy plants, a combined heat and power plant, and a manufacturing sector company—in a cyber incident. The malicious cyber activity highlights the need for critical infrastructure entities with vulnerable edge devices to act now to strengthen their cybersecurity posture against cyber threat activities targeting OT and ICS. A malicious cyber actor(s) gained initial access in this incident through vulnerable internet-facing edge devices, subsequently deploying wiper malware and causing damage to remote terminal units (RTUs). The malicious cyber activity caused loss of view and control between facilities and distribution system operators, destroyed data on human machine interfaces (HMIs), and corrupted system firmware on OT devices. While the affected renewable energy systems continued production, the system operator could not control or monitor them according to their intended design.1 CERT Polska’s incident report highlights: Vulnerable edge devices remain a prime target for threat actors. As indicated by CISA’s Binding Operational Directive (BOD) 26-02: Mitigating Risk From End-of-Support Edge Devices, end-of-support edge devices pose significant risks. OT devices without firmware verification can be permanently damaged. Operators should prioritize updates that allow firmware verification when available; if updates are not immediately feasible, ensure that cyber incident response plans account for inoperative OT devices to mitigate prolonged outages. Threat actors leveraged default credentials, a vulnerability not limited to specific vendors, to pivot onto the HMI and RTUs. Operators should immediately change default passwords and establish requirements for integrators or OT suppliers to enforce password changes in the future. CISA and the Department of Energy’s Office of Cybersecurity, Energy Security, and Emergency Response (DOE CESER) urge OT asset owners and operators to review the following resources for more information about the malicious activity and mitigations: CERT Polska’s Energy Sector Incident Report - 29 December 2025. CISA’s joint fact sheet with FBI, EPA, and DOE Primary Mitigations to Reduce Cyber Threats to Operational Technology. DOE’s Energy Threat Analysis Center’s threat advisories. Acknowledgements DOE CESER and CERT Polska contributed to this Alert. Disclaimer The information in this report is being provided “as is” for informational purposes only. CISA does 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 favoring by CISA. Notes CERT Polska, “Energy Sector Incident Report - 29 December 2025,” Naukowa i Akademicka Sieć Komputerowa Poland, last modified January 30, 2026, https://cert.pl/en/posts/2026/01/incident-report-energy-sector-2025/.

View CSAF Summary Successful exploitation of these vulnerabilities could result in an attacker bypassing authentication, or resetting the device password. The following versions of ZLAN Information Technology Co. ZLAN5143D are affected: ZLAN5143D v1.600 (CVE-2026-25084, CVE-2026-24789) CVSS Vendor Equipment Vulnerabilities v3 9.8 ZLAN Information Technology Co. ZLAN Information Technology Co. ZLAN5143D Missing Authentication for Critical Function Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: China Vulnerabilities Expand All + CVE-2026-25084 Authentication for the device can be bypassed by directly accessing internal URLs. View CVE Details Affected Products ZLAN Information Technology Co. ZLAN5143D Vendor: ZLAN Information Technology Co. Product Version: ZLAN Information Technology Co. ZLAN5143D: v1.600 Product Status: known_affected Remediations Vendor fix ZLAN Information Technology Co. did not respond to CISA's attempts at coordination. Users of ZLAN5143D devices are encouraged to contact ZLAN and keep their systems up to date. https://www.zlmcu.com/en/contatct_us.htm 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 CVE-2026-24789 An unprotected API endpoint allows an attacker to remotely change the device password without providing authentication. View CVE Details Affected Products ZLAN Information Technology Co. ZLAN5143D Vendor: ZLAN Information Technology Co. Product Version: ZLAN Information Technology Co. ZLAN5143D: v1.600 Product Status: known_affected Remediations Vendor fix ZLAN Information Technology Co. did not respond to CISA's attempts at coordination. Users of ZLAN5143D devices are encouraged to contact ZLAN and keep their systems up to date. https://www.zlmcu.com/en/contatct_us.htm 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 Acknowledgments Shorabh Karir and Deepak Singh 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, such as: 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: 2026-02-10 Date Revision Summary 2026-02-10 1 Initial Publication Legal Notice and Terms of Use

View CSAF Summary Successful exploitation of this vulnerability could allow an attacker to gain unauthorized access to protected health information (PHI) or device telemetry. The following versions of ZOLL ePCR IOS Mobile Application are affected: ePCR IOS Mobile Application 2.6.7 (CVE-2025-12699) CVSS Vendor Equipment Vulnerabilities v3 5.5 ZOLL ZOLL ePCR IOS Mobile Application Insertion of Sensitive Information into Externally-Accessible File or Directory Background Critical Infrastructure Sectors: Healthcare and Public Health Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2025-12699 The ZOLL ePCR IOS application reflects unsanitized user input into a WebView. Attacker-controlled strings placed into PCR fields (run number, incident, call sign, notes) are interpreted as HTML/JS when the app prints or renders that content. In the proof of concept (POC), injected scripts return local file content, which would allow arbitrary local file reads from the app's runtime context. These local files contain device and user data within the ePCR medical application, and if exposed, would allow an attacker to access protected health information (PHI) or device telemetry. View CVE Details Affected Products ZOLL ePCR IOS Mobile Application Vendor: ZOLL Product Version: ZOLL ePCR IOS Mobile Application: 2.6.7 Product Status: known_affected Remediations Mitigation ZOLL ePCR IOS application was decommissioned in May 2025. ZOLL has no current plans to provide a replacement application. If users have questions or concerns, they are encouraged to reach out directly to ZOLL Support. https://www.zolldata.com/contact-us. 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 5.5 MEDIUM CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Acknowledgments Bryan Riggins reported this vulnerability to ZOLL 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, such as: 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. Revision History Initial Release Date: 2026-02-10 Date Revision Summary 2026-02-10 1 Initial Publication Legal Notice and Terms of Use

CISA has added six new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-21510 Microsoft Windows Shell Protection Mechanism Failure Vulnerability CVE-2026-21513 Microsoft MSHTML Framework Security Feature Bypass Vulnerability CVE-2026-21514 Microsoft Office Word Reliance on Untrusted Inputs in a Security Decision Vulnerability CVE-2026-21519 Microsoft Windows Type Confusion Vulnerability CVE-2026-21525 Microsoft Windows NULL Pointer Dereference Vulnerability CVE-2026-21533 Windows Remote Desktop Services Elevation of Privilege Vulnerability These types of vulnerabilities are frequent attack vectors 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 Successful exploitation of this vulnerability could result in an unauthorized access to the proxy server. The following versions of AVEVA PI to CONNECT Agent are affected: PI to CONNECT Agent <=v2.4.2520 (CVE-2026-1495) CVSS Vendor Equipment Vulnerabilities v3 6.5 AVEVA AVEVA PI to CONNECT Agent Insertion of Sensitive Information into Log File Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United Kingdom Vulnerabilities Expand All + CVE-2026-1495 The vulnerability, if exploited, could allow an attacker with Event Log Reader (S-1-5-32-573) privileges to obtain proxy details, including URL and proxy credentials, from the PI to CONNECT event log files. This could enable unauthorized access to the proxy server. View CVE Details Affected Products AVEVA PI to CONNECT Agent Vendor: AVEVA Product Version: AVEVA PI to CONNECT Agent: <=v2.4.2520 Product Status: known_affected Remediations Mitigation AVEVA recommends that organizations evaluate the impact of this vulnerability based on their operational environment, architecture, and product implementation. Vendor fix Users of affected product versions should apply security updates to mitigate the risk of proxy details exposure in newly generated PI to CONNECT Agent event logs. Vendor fix Users who have used affected product versions, should review existing PI to CONNECT Agent event logs (live/backups/copies) for exposed proxy connection details and consider purging the sensitive data from logs and/or configuring new credentials for access to the proxy service. Mitigation The following general defensive measures are recommended: Mitigation Remove use of plain text passwords in proxy URLs. Alternatively, if passwords are required by the proxy, then use least-privilege credentials. Mitigation Ensure only trusted users are given Event Log Reader (S-1-5-32-573) privileges on hosts where PI to CONNECT is installed. Mitigation Review existing PI to CONNECT event logs (live/backups/copies) for exposed proxy connection details and consider purging the sensitive data from logs and/or configuring new credentials for access to the proxy service. Vendor fix All affected versions can be fixed by upgrading to PI to CONNECT Agent v2.5.2790 or higher. The latestversion of the agent can be downloaded from the CONNECT Data Services Portal here: https://datahub.connect.aveva.com/. Mitigation For additional information please refer to AVEVA-2026-003 https://www.aveva.com/content/dam/aveva/documents/support/cyber-security-updates/SecurityBulletin_AVEVA-2026-003.pdf. Relevant CWE: CWE-532 Insertion of Sensitive Information into Log File Metrics CVSS Version Base Score Base Severity Vector String 3.1 6.5 MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N Acknowledgments AVEVA 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, such as: 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 this vulnerability has been reported to CISA at this time. This vulnerability is not exploitable remotely. Revision History Initial Release Date: 2026-02-10 Date Revision Summary 2026-02-10 1 Initial Republication of AVEVA-2026-003 Legal Notice and Terms of Use

View CSAF Summary Successful exploitation of this vulnerability could result in a denial-of-service condition. The following versions of AVEVA PI Data Archive are affected: PI Data Archive PI Server <=2018_SP3_Patch_7 (CVE-2026-1507) PI Data Archive PI Server 2023 (CVE-2026-1507) PI Data Archive PI Server 2023_Patch_1 (CVE-2026-1507) PI Data Archive PI Server 2024 (CVE-2026-1507) CVSS Vendor Equipment Vulnerabilities v3 7.5 AVEVA AVEVA PI Data Archive Uncaught Exception Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United Kingdom Vulnerabilities Expand All + CVE-2026-1507 The affected products are vulnerable to an uncaught exception that could allow an unauthenticated attacker to remotely crash core PI services resulting in a denial of service. View CVE Details Affected Products AVEVA PI Data Archive Vendor: AVEVA Product Version: AVEVA PI Data Archive PI Server: <=2018_SP3_Patch_7, AVEVA PI Data Archive PI Server: 2023, AVEVA PI Data Archive PI Server: 2023_Patch_1, AVEVA PI Data Archive PI Server: 2024 Product Status: known_affected Remediations Mitigation AVEVA recommends that organizations evaluate the impact of this vulnerability based on their operational environment, architecture, and product implementation. Users of affected product versions should apply security updates to mitigate the risk of exploit. Mitigation All impacted versions of PI Data Archive can be fixed by upgrading to PI Server 2024 R2 or later available here: https://softwaresupportsp.aveva.com/en-US/downloads/products/details/8c9b0e8c-eb68-481f-b420-c87a253a4172. Mitigation PI Data Archive delivered by PI Server 2018 SP3 Patch 7 and prior can be fixed by upgrading to PI Server 2018 SP3 Patch 8 or higher available here: https://softwaresupportsp.aveva.com/en-US/downloads/products/details/79492560-7e4c-4800-8bd7-40cce61a17d2. Mitigation The following general defensive measures are recommended: Mitigation Monitor liveness of services listed in your installation's "\PI\adm\pisrvstart.bat". Mitigation Set the PI Data Archive Subsystem services to automatically restart. Mitigation PI Data Archive nodes should limit port 5450 inbound access to trusted workstations, users, and software. Mitigation For additional information please refer to AVEVA-2026-002(https://www.aveva.com/content/dam/aveva/documents/support/cyber-security-updates/SecurityBulletin_AVEVA-2026-002.pdf). Relevant CWE: CWE-248 Uncaught Exception 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 AVEVA 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, such as: 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 this vulnerability has been reported to CISA at this time. Revision History Initial Release Date: 2026-02-10 Date Revision Summary 2026-02-10 1 Initial Republication of AVEVA-2026-002 Legal Notice and Terms of Use

View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to redirected users to malicious sites, decrypt communications, perform a man-in-the-middle (MITM) attack, execute malicious scripts, steal files, and perform other various attacks. The following versions of Yokogawa FAST/TOOLS are affected: FAST/TOOLS >=R9.01|<=R10.04 (CVE-2025-66594, CVE-2025-66595, CVE-2025-66597, CVE-2025-66598, CVE-2025-66599, CVE-2025-66600, CVE-2025-66601, CVE-2025-66602, CVE-2025-66603, CVE-2025-66604, CVE-2025-66605, CVE-2025-66606, CVE-2025-66607, CVE-2025-66608) CVSS Vendor Equipment Vulnerabilities v3 8.2 Yokogawa Yokogawa FAST/TOOLS Generation of Error Message Containing Sensitive Information, Cross-Site Request Forgery (CSRF), Use of a Broken or Risky Cryptographic Algorithm, Exposure of Sensitive System Information to an Unauthorized Control Sphere, Improperly Implemented Security Check for Standard, Reliance on IP Address for Authentication, Cleartext Transmission of Sensitive Information, Exposure of Private Personal Information to an Unauthorized Actor, Improper Neutralization of Invalid Characters in Identifiers in Web Pages, Path Traversal: '\..\filename' Background Critical Infrastructure Sectors: Critical Manufacturing, Energy, Food and Agriculture Countries/Areas Deployed: Worldwide Company Headquarters Location: Japan Vulnerabilities Expand All + CVE-2025-66594 Detailed messages are displayed on the error page. This information could be exploited by an attacker for other attacks. View CVE Details Affected Products Yokogawa FAST/TOOLS Vendor: Yokogawa Product Version: Yokogawa FAST/TOOLS: >=R9.01|<=R10.04 Product Status: known_affected Remediations Mitigation Yokogawa recommends users update to revision R10.04 and apply patch software (CS_e12787). After the patch is applied, users should apply R10.04 SP3. Mitigation Yokogawa strongly recommends that all users establish and maintain a comprehensive security program, not just for addressing the vulnerability identified in this YSAR. Security program components include patch updates, antivirus software, backup and recovery solutions, zoning, hardening, whitelisting, firewalls, and other related measures. Yokogawa can assist organizations in setting up and continuously maintaining a security program. As a starting point for developing the most effective risk mitigation plan, Yokogawa offers security risk assessment services. Mitigation For questions related to this report, please contact Yokogawa https://contact.yokogawa.com/cs/gw?c-id=000498. Relevant CWE: CWE-209 Generation of Error Message Containing Sensitive Information 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 CVE-2025-66595 This product is vulnerable to cross-site request forgery (CSRF). When a user accesses a link crafted by an attacker, the user's account could be compromised. View CVE Details Affected Products Yokogawa FAST/TOOLS Vendor: Yokogawa Product Version: Yokogawa FAST/TOOLS: >=R9.01|<=R10.04 Product Status: known_affected Remediations Mitigation Yokogawa recommends users update to revision R10.04 and apply patch software (CS_e12787). After the patch is applied, users should apply R10.04 SP3. Mitigation Yokogawa strongly recommends that all users establish and maintain a comprehensive security program, not just for addressing the vulnerability identified in this YSAR. Security program components include patch updates, antivirus software, backup and recovery solutions, zoning, hardening, whitelisting, firewalls, and other related measures. Yokogawa can assist organizations in setting up and continuously maintaining a security program. As a starting point for developing the most effective risk mitigation plan, Yokogawa offers security risk assessment services. Mitigation For questions related to this report, please contact Yokogawa https://contact.yokogawa.com/cs/gw?c-id=000498. Relevant CWE: CWE-352 Cross-Site Request Forgery (CSRF) 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:N/I:L/A:N CVE-2025-66597 This product supports weak cryptographic algorithms, potentially allowing an attacker to decrypt communications with the web server. View CVE Details Affected Products Yokogawa FAST/TOOLS Vendor: Yokogawa Product Version: Yokogawa FAST/TOOLS: >=R9.01|<=R10.04 Product Status: known_affected Remediations Mitigation Yokogawa recommends users update to revision R10.04 and apply patch software (CS_e12787). After the patch is applied, users should apply R10.04 SP3. Mitigation Yokogawa strongly recommends that all users establish and maintain a comprehensive security program, not just for addressing the vulnerability identified in this YSAR. Security program components include patch updates, antivirus software, backup and recovery solutions, zoning, hardening, whitelisting, firewalls, and other related measures. Yokogawa can assist organizations in setting up and continuously maintaining a security program. As a starting point for developing the most effective risk mitigation plan, Yokogawa offers security risk assessment services. Mitigation For questions related to this report, please contact Yokogawa https://contact.yokogawa.com/cs/gw?c-id=000498. Relevant CWE: CWE-327 Use of a Broken or Risky Cryptographic Algorithm Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.2 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N CVE-2025-66598 This product supports old SSL/TLS versions, potentially allowing an attacker to decrypt communications with the web server. View CVE Details Affected Products Yokogawa FAST/TOOLS Vendor: Yokogawa Product Version: Yokogawa FAST/TOOLS: >=R9.01|<=R10.04 Product Status: known_affected Remediations Mitigation Yokogawa recommends users update to revision R10.04 and apply patch software (CS_e12787). After the patch is applied, users should apply R10.04 SP3. Mitigation Yokogawa strongly recommends that all users establish and maintain a comprehensive security program, not just for addressing the vulnerability identified in this YSAR. Security program components include patch updates, antivirus software, backup and recovery solutions, zoning, hardening, whitelisting, firewalls, and other related measures. Yokogawa can assist organizations in setting up and continuously maintaining a security program. As a starting point for developing the most effective risk mitigation plan, Yokogawa offers security risk assessment services. Mitigation For questions related to this report, please contact Yokogawa https://contact.yokogawa.com/cs/gw?c-id=000498. Relevant CWE: CWE-327 Use of a Broken or Risky Cryptographic Algorithm Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.1 HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N CVE-2025-66599 Physical paths could be displayed on web pages. This information could be exploited by an attacker for other attacks. View CVE Details Affected Products Yokogawa FAST/TOOLS Vendor: Yokogawa Product Version: Yokogawa FAST/TOOLS: >=R9.01|<=R10.04 Product Status: known_affected Remediations Mitigation Yokogawa recommends users update to revision R10.04 and apply patch software (CS_e12787). After the patch is applied, users should apply R10.04 SP3. Mitigation Yokogawa strongly recommends that all users establish and maintain a comprehensive security program, not just for addressing the vulnerability identified in this YSAR. Security program components include patch updates, antivirus software, backup and recovery solutions, zoning, hardening, whitelisting, firewalls, and other related measures. Yokogawa can assist organizations in setting up and continuously maintaining a security program. As a starting point for developing the most effective risk mitigation plan, Yokogawa offers security risk assessment services. Mitigation For questions related to this report, please contact Yokogawa https://contact.yokogawa.com/cs/gw?c-id=000498. Relevant CWE: CWE-497 Exposure of Sensitive System Information to an Unauthorized Control Sphere 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 CVE-2025-66600 This product lacks HSTS (HTTP Strict Transport Security) configuration. When an attacker performs a Man in the middle (MITM) attack, communications with the web server could be sniffed. View CVE Details Affected Products Yokogawa FAST/TOOLS Vendor: Yokogawa Product Version: Yokogawa FAST/TOOLS: >=R9.01|<=R10.04 Product Status: known_affected Remediations Mitigation Yokogawa recommends users update to revision R10.04 and apply patch software (CS_e12787). After the patch is applied, users should apply R10.04 SP3. Mitigation Yokogawa strongly recommends that all users establish and maintain a comprehensive security program, not just for addressing the vulnerability identified in this YSAR. Security program components include patch updates, antivirus software, backup and recovery solutions, zoning, hardening, whitelisting, firewalls, and other related measures. Yokogawa can assist organizations in setting up and continuously maintaining a security program. As a starting point for developing the most effective risk mitigation plan, Yokogawa offers security risk assessment services. Mitigation For questions related to this report, please contact Yokogawa https://contact.yokogawa.com/cs/gw?c-id=000498. Relevant CWE: CWE-358 Improperly Implemented Security Check for Standard Metrics CVSS Version Base Score Base Severity Vector String 3.1 8.2 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N CVE-2025-66601 This product does not specify MIME types. When an attacker performs a content sniffing attack, malicious scripts could be executed. View CVE Details Affected Products Yokogawa FAST/TOOLS Vendor: Yokogawa Product Version: Yokogawa FAST/TOOLS: >=R9.01|<=R10.04 Product Status: known_affected Remediations Mitigation Yokogawa recommends users update to revision R10.04 and apply patch software (CS_e12787). After the patch is applied, users should apply R10.04 SP3. Mitigation Yokogawa strongly recommends that all users establish and maintain a comprehensive security program, not just for addressing the vulnerability identified in this YSAR. Security program components include patch updates, antivirus software, backup and recovery solutions, zoning, hardening, whitelisting, firewalls, and other related measures. Yokogawa can assist organizations in setting up and continuously maintaining a security program. As a starting point for developing the most effective risk mitigation plan, Yokogawa offers security risk assessment services. Mitigation For questions related to this report, please contact Yokogawa https://contact.yokogawa.com/cs/gw?c-id=000498. Relevant CWE: CWE-358 Improperly Implemented Security Check for Standard Metrics CVSS Version Base Score Base Severity Vector String 3.1 6.5 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVE-2025-66602 The web server accepts access by IP address. When a worm that randomly searches for IP addresses intrudes into the network, it could potentially be attacked by the worm. View CVE Details Affected Products Yokogawa FAST/TOOLS Vendor: Yokogawa Product Version: Yokogawa FAST/TOOLS: >=R9.01|<=R10.04 Product Status: known_affected Remediations Mitigation Yokogawa recommends users update to revision R10.04 and apply patch software (CS_e12787). After the patch is applied, users should apply R10.04 SP3. Mitigation Yokogawa strongly recommends that all users establish and maintain a comprehensive security program, not just for addressing the vulnerability identified in this YSAR. Security program components include patch updates, antivirus software, backup and recovery solutions, zoning, hardening, whitelisting, firewalls, and other related measures. Yokogawa can assist organizations in setting up and continuously maintaining a security program. As a starting point for developing the most effective risk mitigation plan, Yokogawa offers security risk assessment services. Mitigation For questions related to this report, please contact Yokogawa https://contact.yokogawa.com/cs/gw?c-id=000498. Relevant CWE: CWE-291 Reliance on IP Address for Authentication 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 CVE-2025-66603 The web server accepts the OPTIONS method. An attacker could potentially use this information to carry out other attacks. View CVE Details Affected Products Yokogawa FAST/TOOLS Vendor: Yokogawa Product Version: Yokogawa FAST/TOOLS: >=R9.01|<=R10.04 Product Status: known_affected Remediations Mitigation Yokogawa recommends users update to revision R10.04 and apply patch software (CS_e12787). After the patch is applied, users should apply R10.04 SP3. Mitigation Yokogawa strongly recommends that all users establish and maintain a comprehensive security program, not just for addressing the vulnerability identified in this YSAR. Security program components include patch updates, antivirus software, backup and recovery solutions, zoning, hardening, whitelisting, firewalls, and other related measures. Yokogawa can assist organizations in setting up and continuously maintaining a security program. As a starting point for developing the most effective risk mitigation plan, Yokogawa offers security risk assessment services. Mitigation For questions related to this report, please contact Yokogawa https://contact.yokogawa.com/cs/gw?c-id=000498. Relevant CWE: CWE-358 Improperly Implemented Security Check for Standard Metrics CVSS Version Base Score Base Severity Vector String 3.1 3.1 LOW CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N CVE-2025-66604 The library version could be displayed on the web page. This information could be exploited by an attacker for other attacks. View CVE Details Affected Products Yokogawa FAST/TOOLS Vendor: Yokogawa Product Version: Yokogawa FAST/TOOLS: >=R9.01|<=R10.04 Product Status: known_affected Remediations Mitigation Yokogawa recommends users update to revision R10.04 and apply patch software (CS_e12787). After the patch is applied, users should apply R10.04 SP3. Mitigation Yokogawa strongly recommends that all users establish and maintain a comprehensive security program, not just for addressing the vulnerability identified in this YSAR. Security program components include patch updates, antivirus software, backup and recovery solutions, zoning, hardening, whitelisting, firewalls, and other related measures. Yokogawa can assist organizations in setting up and continuously maintaining a security program. As a starting point for developing the most effective risk mitigation plan, Yokogawa offers security risk assessment services. Mitigation For questions related to this report, please contact Yokogawa https://contact.yokogawa.com/cs/gw?c-id=000498. Relevant CWE: CWE-319 Cleartext Transmission of Sensitive Information Metrics CVSS Version Base Score Base Severity Vector String 3.1 3.1 LOW CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N CVE-2025-66605 Since there are input fields on this web page with the autocomplete attribute enabled, the input content could be saved in the browser the user is using. View CVE Details Affected Products Yokogawa FAST/TOOLS Vendor: Yokogawa Product Version: Yokogawa FAST/TOOLS: >=R9.01|<=R10.04 Product Status: known_affected Remediations Mitigation Yokogawa recommends users update to revision R10.04 and apply patch software (CS_e12787). After the patch is applied, users should apply R10.04 SP3. Mitigation Yokogawa strongly recommends that all users establish and maintain a comprehensive security program, not just for addressing the vulnerability identified in this YSAR. Security program components include patch updates, antivirus software, backup and recovery solutions, zoning, hardening, whitelisting, firewalls, and other related measures. Yokogawa can assist organizations in setting up and continuously maintaining a security program. As a starting point for developing the most effective risk mitigation plan, Yokogawa offers security risk assessment services. Mitigation For questions related to this report, please contact Yokogawa https://contact.yokogawa.com/cs/gw?c-id=000498. Relevant CWE: CWE-359 Exposure of Private Personal Information to an Unauthorized Actor Metrics CVSS Version Base Score Base Severity Vector String 3.1 3.1 LOW CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N CVE-2025-66606 This product does not properly encode URLs. An attacker could tamper with web pages or execute malicious scripts. View CVE Details Affected Products Yokogawa FAST/TOOLS Vendor: Yokogawa Product Version: Yokogawa FAST/TOOLS: >=R9.01|<=R10.04 Product Status: known_affected Remediations Mitigation Yokogawa recommends users update to revision R10.04 and apply patch software (CS_e12787). After the patch is applied, users should apply R10.04 SP3. Mitigation Yokogawa strongly recommends that all users establish and maintain a comprehensive security program, not just for addressing the vulnerability identified in this YSAR. Security program components include patch updates, antivirus software, backup and recovery solutions, zoning, hardening, whitelisting, firewalls, and other related measures. Yokogawa can assist organizations in setting up and continuously maintaining a security program. As a starting point for developing the most effective risk mitigation plan, Yokogawa offers security risk assessment services. Mitigation For questions related to this report, please contact Yokogawa https://contact.yokogawa.com/cs/gw?c-id=000498. Relevant CWE: CWE-86 Improper Neutralization of Invalid Characters in Identifiers in Web Pages Metrics CVSS Version Base Score Base Severity Vector String 3.1 3.4 LOW CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N CVE-2025-66607 The response header contains an insecure setting. Users could be redirected to malicious sites by an attacker. View CVE Details Affected Products Yokogawa FAST/TOOLS Vendor: Yokogawa Product Version: Yokogawa FAST/TOOLS: >=R9.01|<=R10.04 Product Status: known_affected Remediations Mitigation Yokogawa recommends users update to revision R10.04 and apply patch software (CS_e12787). After the patch is applied, users should apply R10.04 SP3. Mitigation Yokogawa strongly recommends that all users establish and maintain a comprehensive security program, not just for addressing the vulnerability identified in this YSAR. Security program components include patch updates, antivirus software, backup and recovery solutions, zoning, hardening, whitelisting, firewalls, and other related measures. Yokogawa can assist organizations in setting up and continuously maintaining a security program. As a starting point for developing the most effective risk mitigation plan, Yokogawa offers security risk assessment services. Mitigation For questions related to this report, please contact Yokogawa https://contact.yokogawa.com/cs/gw?c-id=000498. Relevant CWE: CWE-358 Improperly Implemented Security Check for Standard Metrics CVSS Version Base Score Base Severity Vector String 3.1 3.7 LOW CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N CVE-2025-66608 This product fails to adequately validate URLs. An attacker could send maliciously crafted requests to gain unauthorized access to files on the web server. View CVE Details Affected Products Yokogawa FAST/TOOLS Vendor: Yokogawa Product Version: Yokogawa FAST/TOOLS: >=R9.01|<=R10.04 Product Status: known_affected Remediations Mitigation Yokogawa recommends users update to revision R10.04 and apply patch software (CS_e12787). After the patch is applied, users should apply R10.04 SP3. Mitigation Yokogawa strongly recommends that all users establish and maintain a comprehensive security program, not just for addressing the vulnerability identified in this YSAR. Security program components include patch updates, antivirus software, backup and recovery solutions, zoning, hardening, whitelisting, firewalls, and other related measures. Yokogawa can assist organizations in setting up and continuously maintaining a security program. As a starting point for developing the most effective risk mitigation plan, Yokogawa offers security risk assessment services. Mitigation For questions related to this report, please contact Yokogawa https://contact.yokogawa.com/cs/gw?c-id=000498. Relevant CWE: CWE-29 Path Traversal: '\..\filename' 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 Yokogawa 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, such as: 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: 2026-02-10 Date Revision Summary 2026-02-10 1 Initial Republication of YSAR-26-0001-E Legal Notice and Terms of Use