Heap-based Buffer Overflow Affecting ffmpeg-4-private-devel package, versions <4.4.8-150600.13.52.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.34% (27th percentile)

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  • Snyk IDSNYK-SLES157-FFMPEG4PRIVATEDEVEL-18610343
  • published11 Aug 2026
  • disclosed10 Aug 2026

Introduced: 10 Aug 2026

NewCVE-2026-64830  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 ffmpeg-4-private-devel to version 4.4.8-150600.13.52.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ffmpeg-4-private-devel package and not the ffmpeg-4-private-devel package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

FFmpeg versions 2.1 through 8.1.2 contains a heap buffer overflow vulnerability in the VobSub subtitle demuxer that allows attackers to corrupt adjacent heap memory by supplying a malicious .sub/.idx subtitle file declaring more distinct stream IDs than the fixed-size array bounds in libavformat/mpeg.c. Attackers can craft a subtitle file with excessive distinct stream IDs to trigger unbounded writes beyond the vobsub->q[] array boundary via ff_subtitles_queue_insert(), potentially achieving arbitrary code execution in any application using FFmpeg's VobSub demuxer.

CVSS Base Scores

version 3.1