Bug 2441087 (CVE-2026-26203) - CVE-2026-26203 pjsip: PJSIP: Denial of Service via malformed H.264 bitstream processing
Summary: CVE-2026-26203 pjsip: PJSIP: Denial of Service via malformed H.264 bitstream ...
Keywords:
Status: NEW
Alias: CVE-2026-26203
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2441205 2441206 2441207
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-19 20:05 UTC by OSIDB Bzimport
Modified: 2026-02-19 23:45 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-02-19 20:05:37 UTC 
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.
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