cvedb.io
CVE-2026-39863
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-04-08T20:16:26.550 · Last modified 2026-06-17T10:42:43.393

Summary

Kamailio is an open source implementation of a SIP Signaling Server. Prior to 6.1.1, 6.0.6, and 5.8.8, an out-of-bounds access in the core of Kamailio (formerly OpenSER and SER) allows remote attackers to cause a denial of service (process crash) via a specially crafted data packet sent over TCP. The issue impacts Kamailio instances having TCP or TLS listeners. This vulnerability is fixed in 5.1.1, 6.0.6, and 5.8.8.

Affected products

kamailio — kamailio

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.