PatchSiren

ZLMediaKit CVE debriefs

These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.

HIGH ZLMediaKit CVE published 2026-04-06

CVE-2026-35203

CVE-2026-35203 is a high-severity vulnerability in the ZLMediaKit streaming media service framework. The VP9 RTP payload parser in ext-codec/VP9Rtp.cpp reads multiple fields from the RTP payload based on flag bits in the first byte, without verifying that sufficient data exists in the buffer. A crafted VP9 RTP packet with a 1-byte payload (0xFF, all flags set) causes the parser to read past the end of the [truncated]