CVE-2026-64830
ffmpeg: FFmpeg versions 2.1 through 8.1.2 contains a heap buffer overflow vulnerability in the VobSub subtitle demuxer that a...
CVE-2026-64830 is fixed in 50 products on 1 platform, first by DEBIAN-CVE-2026-64830, released July 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0065
51st percentile
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| ffmpeg · Debian 14 | 7:9.0.2-1 | DEBIAN-CVE-2026-64830 | Jul 22, 2026 |
| ffmpeg · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.11-0ubuntu0.1+esm15 | ffmpeg 7:3.4.11-0ubuntu0.1+esm15 | Sep 5, 2026 |
| ffmpeg · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm16 | ffmpeg 7:4.2.7-0ubuntu0.1+esm16 | Sep 5, 2026 |
| ffmpeg · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm15 | ffmpeg 7:4.4.2-0ubuntu0.22.04.1+esm15 | Sep 5, 2026 |
| ffmpeg · Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm13 | ffmpeg 7:6.1.1-3ubuntu5+esm13 | Sep 5, 2026 |
| ffmpeg · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | ffmpeg 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| ffmpeg · sles 15.6 | 3.4.2-150200.11.73.1 | SUSE-SU-2026:3552-1 | Aug 10, 2026 |
| ffmpeg · sles 15.7 | 3.4.2-150200.11.73.1 | SUSE-SU-2026:3552-1 | Aug 10, 2026 |
| ffmpeg-4 · opensuse-leap 16.0 | 4.4.7-bp160.3.1 | OPENSUSE-SU-2026:21522-1 | Aug 3, 2026 |
| ffmpeg-4 · sles 15.7 | 4.4.8-150600.13.52.1 | SUSE-SU-2026:3542-1 | Aug 10, 2026 |
| ffmpeg-7 · opensuse-leap 16.0 | 7.1.4-160000.3.1 | OPENSUSE-SU-2026:21572-1 | Aug 12, 2026 |
| ffmpeg-7 · sles 16.0 | 7.1.4-160000.3.1 | SUSE-SU-2026:23232-1 | Aug 12, 2026 |
| libavcodec-extra · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.11-0ubuntu0.1+esm15 | libavcodec-extra 7:3.4.11-0ubuntu0.1+esm15 | Sep 5, 2026 |
| libavcodec-extra · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm16 | libavcodec-extra 7:4.2.7-0ubuntu0.1+esm16 | Sep 5, 2026 |
| libavcodec-extra · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm15 | libavcodec-extra 7:4.4.2-0ubuntu0.22.04.1+esm15 | Sep 5, 2026 |
| libavcodec-extra · Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm13 | libavcodec-extra 7:6.1.1-3ubuntu5+esm13 | Sep 5, 2026 |
| libavcodec-extra · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavcodec-extra 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libavcodec-extra57 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.11-0ubuntu0.1+esm15 | libavcodec-extra57 7:3.4.11-0ubuntu0.1+esm15 | Sep 5, 2026 |
| libavcodec-extra58 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm16 | libavcodec-extra58 7:4.2.7-0ubuntu0.1+esm16 | Sep 5, 2026 |
| libavcodec-extra58 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm15 | libavcodec-extra58 7:4.4.2-0ubuntu0.22.04.1+esm15 | Sep 5, 2026 |
| libavcodec-extra60 · Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm13 | libavcodec-extra60 7:6.1.1-3ubuntu5+esm13 | Sep 5, 2026 |
| libavcodec-extra62 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavcodec-extra62 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libavcodec57 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.11-0ubuntu0.1+esm15 | libavcodec57 7:3.4.11-0ubuntu0.1+esm15 | Sep 5, 2026 |
| libavcodec58 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm16 | libavcodec58 7:4.2.7-0ubuntu0.1+esm16 | Sep 5, 2026 |
| libavcodec58 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm15 | libavcodec58 7:4.4.2-0ubuntu0.22.04.1+esm15 | Sep 5, 2026 |
| libavcodec60 · Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm13 | libavcodec60 7:6.1.1-3ubuntu5+esm13 | Sep 5, 2026 |
| libavcodec62 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavcodec62 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libavdevice57 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.11-0ubuntu0.1+esm15 | libavdevice57 7:3.4.11-0ubuntu0.1+esm15 | Sep 5, 2026 |
| libavdevice58 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm16 | libavdevice58 7:4.2.7-0ubuntu0.1+esm16 | Sep 5, 2026 |
| libavdevice58 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm15 | libavdevice58 7:4.4.2-0ubuntu0.22.04.1+esm15 | Sep 5, 2026 |
| libavdevice60 · Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm13 | libavdevice60 7:6.1.1-3ubuntu5+esm13 | Sep 5, 2026 |
| libavdevice62 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavdevice62 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libavfilter-extra · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.11-0ubuntu0.1+esm15 | libavfilter-extra 7:3.4.11-0ubuntu0.1+esm15 | Sep 5, 2026 |
| libavfilter-extra · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm16 | libavfilter-extra 7:4.2.7-0ubuntu0.1+esm16 | Sep 5, 2026 |
| libavfilter-extra · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm15 | libavfilter-extra 7:4.4.2-0ubuntu0.22.04.1+esm15 | Sep 5, 2026 |
| libavfilter-extra · Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm13 | libavfilter-extra 7:6.1.1-3ubuntu5+esm13 | Sep 5, 2026 |
| libavfilter-extra · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavfilter-extra 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libavfilter-extra11 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavfilter-extra11 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libavfilter-extra6 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.11-0ubuntu0.1+esm15 | libavfilter-extra6 7:3.4.11-0ubuntu0.1+esm15 | Sep 5, 2026 |
| libavfilter-extra7 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm16 | libavfilter-extra7 7:4.2.7-0ubuntu0.1+esm16 | Sep 5, 2026 |
| libavfilter-extra7 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm15 | libavfilter-extra7 7:4.4.2-0ubuntu0.22.04.1+esm15 | Sep 5, 2026 |
| libavfilter-extra9 · Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm13 | libavfilter-extra9 7:6.1.1-3ubuntu5+esm13 | Sep 5, 2026 |
| libavfilter11 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavfilter11 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libavfilter6 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.11-0ubuntu0.1+esm15 | libavfilter6 7:3.4.11-0ubuntu0.1+esm15 | Sep 5, 2026 |
| libavfilter7 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm16 | libavfilter7 7:4.2.7-0ubuntu0.1+esm16 | Sep 5, 2026 |
| libavfilter7 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm15 | libavfilter7 7:4.4.2-0ubuntu0.22.04.1+esm15 | Sep 5, 2026 |
| libavfilter9 · Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm13 | libavfilter9 7:6.1.1-3ubuntu5+esm13 | Sep 5, 2026 |
| libavformat-extra · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm15 | libavformat-extra 7:4.4.2-0ubuntu0.22.04.1+esm15 | Sep 5, 2026 |
| libavformat-extra · Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm13 | libavformat-extra 7:6.1.1-3ubuntu5+esm13 | Sep 5, 2026 |
| libavformat-extra · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavformat-extra 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libavformat-extra58 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm15 | libavformat-extra58 7:4.4.2-0ubuntu0.22.04.1+esm15 | Sep 5, 2026 |
| libavformat-extra60 · Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm13 | libavformat-extra60 7:6.1.1-3ubuntu5+esm13 | Sep 5, 2026 |
| libavformat-extra62 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavformat-extra62 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libavformat57 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.11-0ubuntu0.1+esm15 | libavformat57 7:3.4.11-0ubuntu0.1+esm15 | Sep 5, 2026 |
| libavformat58 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm16 | libavformat58 7:4.2.7-0ubuntu0.1+esm16 | Sep 5, 2026 |
| libavformat58 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm15 | libavformat58 7:4.4.2-0ubuntu0.22.04.1+esm15 | Sep 5, 2026 |
| libavformat60 · Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm13 | libavformat60 7:6.1.1-3ubuntu5+esm13 | Sep 5, 2026 |
| libavformat62 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavformat62 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libavresample3 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.11-0ubuntu0.1+esm15 | libavresample3 7:3.4.11-0ubuntu0.1+esm15 | Sep 5, 2026 |
| libavresample4 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm16 | libavresample4 7:4.2.7-0ubuntu0.1+esm16 | Sep 5, 2026 |
| libavutil55 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.11-0ubuntu0.1+esm15 | libavutil55 7:3.4.11-0ubuntu0.1+esm15 | Sep 5, 2026 |
| libavutil56 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm16 | libavutil56 7:4.2.7-0ubuntu0.1+esm16 | Sep 5, 2026 |
| libavutil56 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm15 | libavutil56 7:4.4.2-0ubuntu0.22.04.1+esm15 | Sep 5, 2026 |
| libavutil58 · Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm13 | libavutil58 7:6.1.1-3ubuntu5+esm13 | Sep 5, 2026 |
| libavutil60 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavutil60 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libpostproc54 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.11-0ubuntu0.1+esm15 | libpostproc54 7:3.4.11-0ubuntu0.1+esm15 | Sep 5, 2026 |
| libpostproc55 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm16 | libpostproc55 7:4.2.7-0ubuntu0.1+esm16 | Sep 5, 2026 |
| libpostproc55 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm15 | libpostproc55 7:4.4.2-0ubuntu0.22.04.1+esm15 | Sep 5, 2026 |
| libpostproc57 · Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm13 | libpostproc57 7:6.1.1-3ubuntu5+esm13 | Sep 5, 2026 |
| libswresample2 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.11-0ubuntu0.1+esm15 | libswresample2 7:3.4.11-0ubuntu0.1+esm15 | Sep 5, 2026 |
| libswresample3 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm16 | libswresample3 7:4.2.7-0ubuntu0.1+esm16 | Sep 5, 2026 |
| libswresample3 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm15 | libswresample3 7:4.4.2-0ubuntu0.22.04.1+esm15 | Sep 5, 2026 |
| libswresample4 · Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm13 | libswresample4 7:6.1.1-3ubuntu5+esm13 | Sep 5, 2026 |
| libswresample6 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libswresample6 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libswscale4 · Ubuntu 18.04.6 LTS (bionic) | 7:3.4.11-0ubuntu0.1+esm15 | libswscale4 7:3.4.11-0ubuntu0.1+esm15 | Sep 5, 2026 |
| libswscale5 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm16 | libswscale5 7:4.2.7-0ubuntu0.1+esm16 | Sep 5, 2026 |
| libswscale5 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm15 | libswscale5 7:4.4.2-0ubuntu0.22.04.1+esm15 | Sep 5, 2026 |
| libswscale7 · Ubuntu 24.04.5 LTS (noble) | 7:6.1.1-3ubuntu5+esm13 | libswscale7 7:6.1.1-3ubuntu5+esm13 | Sep 5, 2026 |
| libswscale9 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libswscale9 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.