CVE-2025-63929

7.5 highEPSS 0.4%

High (7.5) in airpig2011 iec104. EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-31)
CWE: CWE-476
Published: 2025-11-12
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

airpig2011:iec104

References

https://github.com/airpig2011/IEC104/issues/21
https://songsong.host/mybugs/CVE-2025-63929.html

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