CVE-2025-64691: aveva process_optimization Code Injection
CVSS: 9.3v4.0CriticalAnalyzed
Published 16-01-2026Last modified 16-01-2026
Vulnerability summary
CVE-2025-64691 is a critical (CVSS 9.3) Code Injection vulnerability in aveva process_optimization. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.1% of scored vulnerabilities.
CVSS score
9.3/10
010
Critical · v4.0 (CVE.org)EPSS score
0.29%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 16-01-2026PublishedVulnerability first disclosed.
- 16-01-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 2 sources · 2 versionsCritical 9.3Preferred score · CVE.org (CNA)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:HSourcesAll 2 agree
- NVDNIST9.3CriticalCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
High 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST8.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS trend
Probability
0.29%
Chance of exploitation in the next 30 days
Percentile
20%
Versus all other CVEs
30-day change
0.00 pp
From 0.29% on 21-09-2026
21-09-202621-10-2026
EPSS score0.29%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Aveva1 product
- process_optimization≤ 2024.1 | < 2025
1 vendor · 1 product
References
4 links- www.aveva.com/en/support-and-success/cyber-security-updates/Vendor Advisory
