9.3
CRITICAL CVSS 4.0
CVE-2025-64691
AVEVA Process Optimization Code Injection
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.

INFO

Published Date :

Jan. 16, 2026, 12:06 a.m.

Last Modified :

Jan. 16, 2026, 12:06 a.m.

Remotely Exploit :

No

Source :

icscert
Affected Products

The following products are affected by CVE-2025-64691 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 7d14cffa-0d7d-4270-9dc0-52cabd5a23a6
CVSS 4.0 CRITICAL 7d14cffa-0d7d-4270-9dc0-52cabd5a23a6
Solution
Restrict access to TCL Macro scripts to prevent unauthorized modifications and privilege escalation.
  • Verify script permissions and ownership.
  • Implement least privilege for script access.
  • Monitor script integrity for unauthorized changes.
  • Review application access controls.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-64691 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 9.3
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact