CVE-2026-125069

medium

Description

FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in the Motion Pixels decoder because mp_decode_frame() ignores init_get_bits() failure. Attackers supplying a roughly 2^28-byte packet through the libavcodec API overflow the bit count, causing reads from a NULL buffer that crash the process.

References

https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-null-pointer-dereference-via-motion-pixels-decoder

https://github.com/FFmpeg/FFmpeg/commit/26b4c37526fe0ecf1095b45daac08050f25f7659

https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/motionpixels.c#L302

https://github.com/FFmpeg/FFmpeg

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-120244

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25704

Details

Source: Mitre, NVD

Published: 2026-11-09

Updated: 2026-11-10

Risk Information

CVSS v2

Base Score: 4

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

Severity: Medium

CVSS v3

Base Score: 4.7

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

Severity: Medium

CVSS v4

Base Score: 5.7

Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00172