CVE-2026-125194

medium

Description

FFmpeg through 9.0.2 contains an out-of-bounds read vulnerability in pcm_dvd_encode_frame() in libavcodec/pcm-dvdenc.c when a 24-bit final frame holds fewer samples than one block. Attackers can supply 24-bit 48 or 96 kHz audio whose length leaves a short final frame, causing the loop counter to wrap and crash the transcoding process.

References

https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-out-of-bounds-read-via-pcm-dvd-encoder

https://github.com/FFmpeg/FFmpeg/commit/cfe6a6cd7de59341a70ebe6a2d477f3281aec834

https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/pcm-dvdenc.c#L120

https://github.com/FFmpeg/FFmpeg

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-120283

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25694

Details

Source: Mitre, NVD

Published: 2026-11-09

Updated: 2026-11-10

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: 5.5

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

Severity: Medium

CVSS v4

Base Score: 6.8

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

Severity: Medium

EPSS

EPSS: 0.00165