CVE-2026-26203

MEDIUM

6.5

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.16.5

SeveridadMEDIUM

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

Vector de ataqueLOCAL

ComplejidadLOW

Privilegios requeridosLOW

Interaccion usuarioNONE

Publicado2/19/2026

Ultima modificacion2/20/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

pjsip:pjsip

Debilidades (CWE)

CWE-416

Referencias

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)

Correlaciones IOC

Sin correlaciones registradas

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