CVE-2025-63929
HIGHairpig2011 IEC104 < 2019-07-08 - Denial of Service via Concurrent IEC10X_PrioEnQueue Operations
Title source: llmDescription
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.
References (2)
Core 2
Core References
Exploit, Issue Tracking
https://github.com/airpig2011/IEC104/issues/21
Exploit, Third Party Advisory
https://songsong.host/mybugs/CVE-2025-63929.html
Scores
CVSS v3
7.5
EPSS
0.0030
EPSS Percentile
21.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-476
Status
published
Products (1)
airpig2011/iec104
< 2019-07-08
Published
Nov 12, 2025
Tracked Since
Feb 18, 2026