CVE-2025-3495 COMMGR - Insufficient Randomization Authentication Bypass

Critical 9.8 Published Updated

Attackers can brute force weak session IDs to bypass authentication and execute arbitrary code in Delta COMMGR.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-3495?

CVE-2025-3495 is a critical authentication bypass vulnerability in Delta Electronics COMMGR, published on 16 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Delta Electronics COMMGR v1 and v2 uses insufficiently randomized values to generate session IDs (CWE-338). An attacker could easily brute force a session ID and load and execute arbitrary code.

Weakness: CWE-338

Which versions are affected by CVE-2025-3495?

How do I fix CVE-2025-3495?

No fix has been published for CVE-2025-3495 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2025-3495 being exploited?

There is no known exploitation of CVE-2025-3495 in the wild and no public exploit code.

Sources

Also known as GHSA-7f2q-mwc4-6qvx.

Is CVE-2025-3495 in your software?

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