CVE-2025-9951 Affecting ffmpeg package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.4% (33rd percentile)

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  • Snyk IDSNYK-UBUNTU1604-FFMPEG-12613428
  • published7 Oct 2025
  • disclosed9 Sept 2025

Introduced: 9 Sep 2025

CVE-2025-9951  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:16.04 ffmpeg.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ffmpeg package and not the ffmpeg package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

A heap-buffer-overflow write exists in jpeg2000dec FFmpeg which allows an attacker to potentially gain remote code execution or cause denial of service via the channel definition cdef atom of JPEG2000.

CVSS Base Scores

version 3.1