Privilege Escalation via TCL Macro Script Code Injection in AVEVA Process Optimization
CVE-2025-64691 is a code injection vulnerability in AVEVA Process Optimization affecting versions 2024.1 and earlier. The flaw allows an authenticated attacker with OS standard user privileges to tamper with TCL Macro scripts. By modifying these macro scripts, the attacker can trigger execution in a higher-privileged context and escalate privileges to OS SYSTEM on the Model Application Server. The issue is classified as CWE-94 and is described by the vendor/CISA as capable of leading to complete compromise of the Model Application Server.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Unknown
An authenticated code injection vulnerability in macro functionality enabling privilege escalation to SYSTEM (via TCL scripts).
A privilege escalation vulnerability that allows an authenticated OS standard user to tamper with TCL Macro scripts and escalate privileges to OS system, potentially leading to complete compromise of the model application server.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.