CVE-2026-52295

FFmpeg before 9.0 has an out-of-bounds read because the copied extradata lacked required padding before GetBitContext-based access in libavformat/iamf_writer.c.

Score

CVSS 3.1 6.2 Medium

Status

Analyzed - cve@mitre.org

Published

2026-09-01

Last modified

2026-10-14

Weaknesses

CWE-120, CWE-125

Affected products

• Ffmpeg (Ffmpeg)

References

• https://github.com/Kenan-Kamel/VulnerabilitiesReference/tree/main/FFmpeg/ExtradataPadding
• https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22988
• https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/8439e0203744a30d280668fcd086f74ed5001da1