CVE-2025-36539

Solution:

• AVEVA recommends that organizations evaluate the impact of these vulnerabilities based on their operational environment, architecture, and product implementation. Users with affected product versions should apply security updates to mitigate the risk of exploit. All affected versions of PI Data Archive and PI Server can be fixed by upgrading to PI Server 2024 or higher. From OSISoft Customer Portal https://my.osisoft.com/ , search for "AVEVA PI Server" and select version 2024 or higher. For additional information please refer to AVEVA-2025-001 https://www.aveva.com/en/support-and-success/cyber-security-updates/ .

Workaround:

• AVEVA recommends that organizations evaluate the impact of these vulnerabilities based on their operational environment, architecture, and product implementation. Users with affected product versions should apply security updates to mitigate the risk of exploit. AVEVA further recommends users follow general defensive measures: * 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 https://customers.osisoft.com/s/knowledgearticle . * Impact and severity of vulnerabilities can be reduced through industry accepted IT practices. Please consult your IT engineer for advice on how to best implement these firewall restrictions in your organization's architecture. OSIsoft technical support provides guidance on architectural approaches, backup procedures, network defenses, and operating system configuration. * For a starting point on PI System security best practices, see knowledge base article KB00833 - Seven best practices for securing your PI Server https://customers.osisoft.com/s/knowledgearticle . For additional information please refer to AVEVA-2025-001 https://www.aveva.com/en/support-and-success/cyber-security-updates/ .