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. 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 . 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 . The following general defensive measures are recommended: * Monitor liveness of services listed in your installation’s “\PI\adm\pisrvstart.bat”. * Set the PI Data Archive Subsystem services to automatically restart. * PI Data Archive nodes should limit port 5450 inbound access to trusted workstations, users, and software. For additional information please refer to AVEVA-2026-002( https://www.aveva.com/content/dam/aveva/documents/support/cyber-security-updates/SecurityBulletin_AV... https://www.aveva.com/content/dam/aveva/documents/support/cyber-security-updates/SecurityBulletin_AVEVA-2026-002.pdf) .