View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to obtain a valid authentication token, perform a denial of service, or crash the system. The following versions of Rockwell Automation FactoryTalk Historian Site Edition are affected: FactoryTalk Historian SE 11 (CVE-2025-13036) FactoryTalk Historian SE <=11.00 (CVE-2025-44019) FactoryTalk Historian SE <=11.00 (CVE-2025-36539) CVSS Vendor Equipment Vulnerabilities v3 7.7 Rockwell Automation Rockwell Automation FactoryTalk Historian Site Edition Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'), Uncaught Exception Background Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2025-13036 An authentication bypass security issue exists within FactoryTalk Historian Site Edition. By continually sending requests to the login endpoint, an attacker may obtain a valid authentication token. View CVE Details Affected Products Rockwell Automation FactoryTalk Historian Site Edition Vendor: Rockwell Automation Product Version: Rockwell Automation FactoryTalk Historian SE: 11 Product Status: known_affected Remediations Mitigation Rockwell Automation recommends the following: Mitigations and Workarounds for CVE-2025-13036: Customers using the affected software, who are not able to upgrade to one of the corrected versions, should use our security best practices and consider applying the available patch (BF32850) for their current version (https://support.rockwellautomation.com/app/answers/answer_view/a_id/1157978/loc/en_US). https://support.rockwellautomation.com/app/answers/answer_view/a_id/1157978/loc/en_US Mitigation For more information, see Rockwell Automation Security Advisory SD1773 (https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1773.html) https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1773.html Relevant CWE: CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') Metrics CVSS Version Base Score Base Severity Vector String 3.1 7.7 HIGH CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L 4.0 9.2 CRITICAL CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N CVE-2025-44019 AVEVA PI Data Archive products are vulnerable to an uncaught exception that, if exploited, could allow an authenticated user to shut down certain necessary PI Data Archive subsystems, resulting in a denial of service. Depending on the timing of the crash, data present in snapshots/write cache may be lost. View CVE Details Affected Products Rockwell Automation FactoryTalk Historian Site Edition Vendor: Rockwell Automation Product Version: Rockwell Automation FactoryTalk Historian SE: <=11.00 Product Status: known_affected Remediations Mitigation For more information, see Rockwell Automation Security Advisory SD1773 (https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1773.html) https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1773.html Relevant CWE: CWE-248 Uncaught Exception 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:N/I:L/A:H 4.0 7.1 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N CVE-2025-36539 AVEVA PI Data Archive products are vulnerable to an uncaught exception that, if exploited, could allow an authenticated user to shut down certain necessary PI Data Archive subsystems, resulting in a denial of service. View CVE Details Affected Products Rockwell Automation FactoryTalk Historian Site Edition Vendor: Rockwell Automation Product Version: Rockwell Automation FactoryTalk Historian SE: <=11.00 Product Status: known_affected Remediations Mitigation Mitigations and Workarounds for CVE-2025-36539 & CVE-2025-44109: Customers using the affected software, who are not able to upgrade to one of the corrected versions, should use our security best practices and also consider the following: Monitor liveness of PI Network Manager and PI Archive Subsystem services. Set the PI Network Manager and PI Archive Subsystem services to automatically restart. Limit port 5450 access to trusted workstations and software. For a list of PI System firewall port requirements, see knowledge base article KB01162 - Firewall Port Requirements. For a starting point on PI system security best practices, see knowledge base article KB00833 - Best practices for securing your PI Server. Mitigation For more information, see Rockwell Automation Security Advisory SD1773 (https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1773.html) https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1773.html Relevant CWE: CWE-248 Uncaught Exception Metrics CVSS Version Base Score Base Severity Vector String 3.1 6.5 MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H 4.0 7.1 HIGH CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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: 2026-06-18 Date Revision Summary 2026-06-18 1 Initial Republication of Rockwell Automation Security Advisory SD1773 Legal Notice and Terms of Use