CVE-2025-64691: Aveva Process Optimization

High severity, CVSS 8.8. EPSS: 0.3% chance of exploitation in the next 30 days.

The vulnerability, if exploited, could allow an authenticated miscreant (OS standard user) to tamper with TCL Macro scripts and escalate privileges to OS system, potentially resulting in complete compromise of the model application server.

Affected products

• Aveva Process Optimization: before 2025 (fixed in 2025)

Published 2026-01-16. Last modified 2026-06-17.