CVE-2025-64691
Severity CVSS v4.0:
CRITICAL
Type:
CWE-94
Code Injection
Publication date:
16/01/2026
Last modified:
22/01/2026
Description
The vulnerability, if exploited, could allow an authenticated miscreant <br />
(OS standard user) to tamper with TCL Macro scripts and escalate <br />
privileges to OS system, potentially resulting in complete compromise of<br />
the model application server.
Impact
Base Score 4.0
9.30
Severity 4.0
CRITICAL
Base Score 3.x
8.80
Severity 3.x
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:aveva:process_optimization:*:*:*:*:*:*:*:* | 2025 (excluding) |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-015-01.json
- https://softwaresupportsp.aveva.com/en-US/downloads/products/details/a643eaa3-0d85-4fde-ac11-5239e87a68ea
- https://www.aveva.com/en/support-and-success/cyber-security-updates/
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-015-01



