CVE-2025-63929
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductAirpig2011 Iec104
PublishedNov 12, 2025
First seenNov 12, 2025
Weakness typeCWE-476NULL pointer dereference
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| airpig2011 iec104 | v ≤ 2019-07-08 | — |
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