CVE-2026-26967

MEDIUM

5.3

Description

PJSIP is a free and open source multimedia communication library written in C. In versions 2.16 and below, there is a critical Heap-based Buffer Overflow vulnerability in PJSIP's H.264 unpacketizer. The bug occurs when processing malformed SRTP packets, where the unpacketizer reads a 2-byte NAL unit size field without validating that both bytes are within the payload buffer bounds. The vulnerability affects applications that receive video using H.264. A patch is available at https://github.com/pjsip/pjproject/commit/f821c214e52b11bae11e4cd3c7f0864538fb5491.

Details CVE

Score CVSS v3.15.3

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie2/20/2026

Derniere modification2/20/2026

Sourcenvd

Observations honeypot0

Produits affectes

pjsip:pjsip

Faiblesses (CWE)

CWE-122

References

https://github.com/pjsip/pjproject/commit/f821c214e52b11bae11e4cd3c7f0864538fb5491(security-advisories@github.com)

https://github.com/pjsip/pjproject/security/advisories/GHSA-x2hc-6969-g8v6(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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