CVE-2026-26203

MEDIUM

6.5

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung6.5

SchweregradMEDIUM

CVSS VektorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

AngriffsvektorLOCAL

KomplexitatLOW

Erforderliche PrivilegienLOW

BenutzerinteraktionNONE

Veroffentlicht2/19/2026

Zuletzt geandert2/20/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

pjsip:pjsip

Schwachen (CWE)

CWE-416

Referenzen

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)

IOC Korrelationen

Keine Korrelationen erfasst

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