CVE-2025-63929 Null dereference in n/a

High 7.5 Published Updated

Concurrent thread access in the IEC104 library can cause a null pointer dereference, leading to a segmentation fault and denial of service.

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-2025-63929?

CVE-2025-63929 is a high-severity vulnerability in n/a, published on 12 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A null pointer dereference vulnerability exists in airpig2011 IEC104 thru Commit be6d841 (2019-07-08). When multiple threads enqueue elements concurrently via IEC10X_PrioEnQueue, the function may dereference a null or freed queue pointer, resulting in a segmentation fault and potential denial-of-service.

Weakness: CWE-476

Which versions are affected by CVE-2025-63929?

It affects 1 product.

Products include Airpig2011 Iec104.

How do I fix CVE-2025-63929?

No fix has been published for CVE-2025-63929 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-63929 being exploited?

There is no known exploitation of CVE-2025-63929 in the wild and no public exploit code.

Sources

Also known as GHSA-rf9p-3vx3-92rp.

Is CVE-2025-63929 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free