CVE-2026-125214

high

Description

FFmpeg through 9.0.2 contains a heap buffer overflow vulnerability in pcm_bluray_decode_frame() in libavcodec/pcm-bluray.c on big-endian hosts. Attackers can supply a crafted Blu-ray (M2TS) LPCM stream whose payload length is not a multiple of the sample size, writing attacker-controlled bytes past the audio frame buffer.

References

https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-heap-buffer-overflow-in-blu-ray-pcm-decoder

https://github.com/FFmpeg/FFmpeg/commit/a61b32df3fd67f76c1c8c7ea51be2a66efb0f945

https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/pcm-bluray.c#L170

https://github.com/FFmpeg/FFmpeg

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-120303

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25337

Details

Source: Mitre, NVD

Published: 2026-11-09

Updated: 2026-11-10

Risk Information

CVSS v2

Base Score: 6.2

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

Severity: Medium

CVSS v3

Base Score: 7

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

Severity: High

CVSS v4

Base Score: 7.3

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

Severity: High

EPSS

EPSS: 0.00143