CVE-2025-64691

HIGH 8.8CVE-2025-64691 · Published 16/01/2026 · updated 17/06/2026

In short

CVE-2025-64691 is a HIGH (CVSS 8.8) vulnerability affecting process optimization (aveva).
Chance of exploitation in the next 30 days (EPSS): 0.29%, higher than 21.4% of all vulnerabilities.
Fix: update to 2025 or later.

Package	Affected versions	Patched versions
process optimization aveva	`< 2025`	`2025`

Description

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.

References

cisagov/CSAF · Third Party Advisory
softwaresupportsp.aveva.com/en-US/downloads/products/details/a643eaa3-0d85-4fde-ac11-5239e87a68ea · Permissions Required
aveva.com/en/support-and-success/cyber-security-updates · Vendor Advisory
cisa.gov/news-events/ics-advisories/icsa-26-015-01 · Third Party Advisory

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Package

Affected versions

Patched versions

process optimization

aveva

< 2025

2025

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