CVE-2024-31031 Affecting libcoap3 package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-DEBIAN14-LIBCOAP3-11747552
- published10 Aug 2025
- disclosed17 Apr 2024
Introduced: 17 Apr 2024
CVE-2024-31031 (opens in a new tab)How to fix?
There is no fixed version for Debian:14 libcoap3.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libcoap3 package and not the libcoap3 package as distributed by Debian.
See How to fix? for Debian:14 relevant fixed versions and status.
An issue in coap_pdu.c in libcoap 4.3.4 allows attackers to cause undefined behavior via a sequence of messages leading to unsigned integer overflow.
References
- https://security-tracker.debian.org/tracker/CVE-2024-31031
- https://github.com/obgm/libcoap/issues/1351
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPENEJBV3KSASIYKNZAKXDAH7Q66KPYG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TUL7QDYFGEIJVO2ZSG4O5HEAWR6PFC52/