High severity7.5NVD Advisory· Published Nov 12, 2025· Updated Jun 17, 2026
CVE-2025-63929
CVE-2025-63929
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3<=be6d841+ 2 more
- (no CPE)range: <=be6d841
- (no CPE)
- cpe:2.3:a:airpig2011:iec104:*:*:*:*:*:*:*:*range: <=2019-07-08
Patches
Vulnerability mechanics
References
2- github.com/airpig2011/IEC104/issues/21nvdExploitIssue Tracking
- songsong.host/mybugs/CVE-2025-63929.htmlnvdExploitThird Party Advisory
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