CVE-2025-64691
AVEVA Process Optimization Code Injection
- State
- Published
- Severity
- 9.3 Critical
- Published
- Jan 16, 2026
- Updated
- Jan 16, 2026
- Reserved
- Nov 24, 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H | icscert |
| 3.1 | 8.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | icscert |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
Process OptimizationAVEVA |
|
References
- https://www.aveva.com/en/support-and-success/cyber-security-updates/
- https://softwaresupportsp.aveva.com/en-US/downloads/products/details/a643eaa3-0d85-4fde-ac11-5239e87a68ea
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-015-01
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-015-01.json
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