CVE-2026-52295

medium

Description

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.

References

https://github.com/Kenan-Kamel/VulnerabilitiesReference/tree/main/FFmpeg/ExtradataPadding

https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/8439e0203744a30d280668fcd086f74ed5001da1

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-69409

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22988

Details

Source: Mitre, NVD

Published: 2026-09-01

Updated: 2026-09-13

Risk Information

CVSS v2

Base Score: 4.9

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 6.2

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