PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, a heap out-of-bounds read vulnerability exists in PJSIP's VP9 RTP unpacketizer that occurs when parsing crafted VP9 Scalability Structure (SS) data. Insufficient bounds checking on the payload descriptor length may cause reads beyond the allocated RTP payload buffer. This issue has been patched in version 2.17. A workaround for this issue involves disabling VP9 codec if not needed.
History

Tue, 31 Mar 2026 16:00:00 +0000

Type Values Removed Values Added
Description PJSIP is a free and open source multimedia communication library written in C. Prior to version 2.17, a heap out-of-bounds read vulnerability exists in PJSIP's VP9 RTP unpacketizer that occurs when parsing crafted VP9 Scalability Structure (SS) data. Insufficient bounds checking on the payload descriptor length may cause reads beyond the allocated RTP payload buffer. This issue has been patched in version 2.17. A workaround for this issue involves disabling VP9 codec if not needed.
Title PJSIP: Heap OOB read in VPX unpacketizer
Weaknesses CWE-125
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-31T15:36:47.466Z

Reserved: 2026-03-26T16:22:29.034Z

Link: CVE-2026-34235

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-31T16:16:32.767

Modified: 2026-03-31T16:16:32.767

Link: CVE-2026-34235

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.