CVE-2025-64691

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.
Code Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
icscertCNA
8.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
References
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