Heap-based Buffer Overflow Affecting ffmpeg package, versions *


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.14% (4th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FFMPEG-18968976
  • published20 Aug 2026
  • disclosed19 Aug 2026

Introduced: 19 Aug 2026

NewCVE-2026-75141  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable ffmpeg.

NVD Description

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

FFmpeg before commit acf5d7c contains a heap buffer overflow in the hvcC box writer. When writing an HEVC configuration record with more NAL units of a single type than the count field can represent, the NAL unit count overflows, causing a heap buffer overflow. A crafted HEVC input file triggers the overflow during muxing.

CVSS Base Scores

version 3.1