ZLMediaKit VP9 RTP Parser Out-of-Bounds Read_CVE-2026-35203

7.5 / 10

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

ZLMediaKit is a 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 allocated buffer, resulting in a heap-buffer-overflow. This vulnerability is fixed with commit 435dcbcbbf700fd63b2ca9eac6cef3b5ea75169d.

Basic Information

ID CVE-2026-35203

Source GitHub_M

Published Apr 6, 2026 at 19:54

Modified Apr 7, 2026 at 19:30

Affected Product

Vendor ZLMediaKit

Product ZLMediaKit

Version < 435dcbcbbf700fd63b2ca9eac6cef3b5ea75169d

Affected Versions ZLMediaKit ZLMediaKit < 435dcbcbbf700fd63b2ca9eac6cef3b5ea75169d

CWE Classification

CWE-125

References

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    "published": "2026-04-06T19:54:45.052Z",
    "modified": "2026-04-07T19:30:51.437Z",
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