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.

INFO

Published Date :

2026-02-20T00:26:54.397Z

Last Modified :

2026-02-20T15:36:17.964Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-26967 vulnerability.

Vendors Products
Pjsip
  • Pjproject
  • Pjsip
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-26967.

URL Resource
https://github.com/pjsip/pjproject/commit/f821c214e52b11bae11e4cd3c7f0864538fb5491 cve-icon cve-icon cve-icon
https://github.com/pjsip/pjproject/security/advisories/GHSA-x2hc-6969-g8v6 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-26967 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-26967 cve-icon
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CVSS Vulnerability Scoring System

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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact