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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History
Fri, 20 Feb 2026 01:15:00 +0000
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Thu, 19 Feb 2026 20:00:00 +0000
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| Description | 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. | |
| Title | PJSIP's pjmedia-video has use-after-free in H264 packetizer when packetizing fragmented NAL | |
| Weaknesses | CWE-416 | |
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-02-19T21:22:31.050Z
Reserved: 2026-02-11T19:56:24.814Z
Link: CVE-2026-26203
Updated: 2026-02-19T21:15:32.089Z
Status : Received
Published: 2026-02-19T20:25:43.113
Modified: 2026-02-19T20:25:43.113
Link: CVE-2026-26203
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OpenCVE Enrichment
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