Stack-based Buffer Overflow Affecting ffmpeg-8.0 package, versions <8.0.3-r4


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.2% (9th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-WOLFILATEST-FFMPEG80-20360630
  • published1 Oct 2026
  • disclosed19 Aug 2026

Introduced: 19 Aug 2026

CVE-2026-75142  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade Wolfi ffmpeg-8.0 to version 8.0.3-r4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ffmpeg-8.0 package and not the ffmpeg-8.0 package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

FFmpeg before commit 9d786e4 contains a stack buffer overflow in the MPEG-PS muxer (libavformat/mpegenc.c). When muxing input with more streams than the muxer's fixed-size stack buffer accommodates, the buffer is overflowed. A crafted input with an excessive number of streams triggers the overflow during MPEG-PS muxing.

CVSS Base Scores

version 3.1