CVE-2026-26203

MEDIUM

6.5

Description

PJSIP is a free and open source multimedia communication library. Versions prior to 2.17 have a critical heap buffer underflow vulnerability in PJSIP's H.264 packetizer. The bug occurs when processing malformed H.264 bitstreams without NAL unit start codes, where the packetizer performs unchecked pointer arithmetic that can read from memory located before the allocated buffer. Version 2.17 contains a patch for the issue.

Details CVE

Score CVSS v3.16.5

SeveriteMEDIUM

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

Vecteur d'attaqueLOCAL

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurNONE

Publie2/19/2026

Derniere modification2/20/2026

Sourcenvd

Observations honeypot0

Produits affectes

pjsip:pjsip

Faiblesses (CWE)

CWE-416

References

https://github.com/pjsip/pjproject/commit/5aee54f09d4f91538d55279d7316591b28fded6c(security-advisories@github.com)

https://github.com/pjsip/pjproject/security/advisories/GHSA-p965-mf7j-gwv8(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

This product uses data from the NVD API but is not endorsed or certified by the NVD.