RCE in Aveva Process Optimization
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.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (19.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.000
Affected products
- Aveva Process Optimization — versions 0
- Aveva Process Optimization
Weakness classification (CWE)
References
- www.aveva.com/en/support-and-success/cyber-security-updates/ (Vendor Advisory)
- softwaresupportsp.aveva.com/en-US/downloads/products/details/a643eaa3-0d85-4fde… (Permissions Required)
- www.cisa.gov/news-events/ics-advisories/icsa-26-015-01 (US Government Resource, Third Party Advisory)
- github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-015-01.js… (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-64691?
- CVE-2025-64691 is a high-severity vulnerability in Aveva Process Optimization, classified under Code Injection. CVSS score: 8.8/10. Published 2026-01-16.
- How severe is CVE-2025-64691?
- High severity. CVSS v3 base score is 8.8 out of 10.