CVE-2026-26203

MEDIUM

6.5

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.16.5

SeveridadeMEDIUM

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

Vetor de ataqueLOCAL

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado2/19/2026

Ultima modificacao2/20/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

pjsip:pjsip

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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