ffmpeg: FFmpeg versions from 3.0 up to, but not including, 9.0 contain an uninitialized heap memory read vulnerability in the...
CVE-2026-70629 is fixed in 18 products on 1 platform, first by ffmpeg 7:4.2.7-0ubuntu0.1+esm17, released August 6, 2026. It is not reported as exploited. Patch Radar priority: Routine.
FFmpeg versions from 3.0 up to, but not including, 9.0 contain an uninitialized heap memory read vulnerability in the native RSCC decoder (libavcodec/rscc.c) that allows attackers to disclose heap memory contents by supplying a crafted video file with a compressed tile that decompresses fewer bytes than the declared tile geometry requires. When rscc_decode_frame() calls av_image_copy_plane() without validating the decompressed byte count against the tile dimensions, the unwritten suffix of the persistent intermediate buffer ctx->inflated_buf is copied into the decoded frame, potentially exposing data from prior heap allocations or previous decoded frames in persistent decoding services.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| ffmpeg · Debian 14 | 7:9.0.2-1 | DEBIAN-CVE-2026-70629 | Aug 6, 2026 |
| ffmpeg · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm17 | ffmpeg 7:4.2.7-0ubuntu0.1+esm17 | Aug 6, 2026 |
| ffmpeg · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm16 | ffmpeg 7:4.4.2-0ubuntu0.22.04.1+esm16 | Aug 6, 2026 |
| ffmpeg-4 · sles 15.7 | 4.4.8-150600.13.55.1 | SUSE-SU-2026:4149-1 | Sep 14, 2026 |
| ffmpeg-7 · opensuse-leap 16.0 | 7.1.5-160000.1.1 | OPENSUSE-SU-2026:21877-1 | Sep 18, 2026 |
| libavcodec-extra · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm17 | libavcodec-extra 7:4.2.7-0ubuntu0.1+esm17 | Aug 6, 2026 |
| libavcodec-extra · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm16 | libavcodec-extra 7:4.4.2-0ubuntu0.22.04.1+esm16 | Aug 6, 2026 |
| libavcodec-extra58 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm17 | libavcodec-extra58 7:4.2.7-0ubuntu0.1+esm17 | Aug 6, 2026 |
| libavcodec-extra58 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm16 | libavcodec-extra58 7:4.4.2-0ubuntu0.22.04.1+esm16 | Aug 6, 2026 |
| libavcodec58 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm17 | libavcodec58 7:4.2.7-0ubuntu0.1+esm17 | Aug 6, 2026 |
| libavcodec58 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm16 | libavcodec58 7:4.4.2-0ubuntu0.22.04.1+esm16 | Aug 6, 2026 |
| libavdevice58 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm17 | libavdevice58 7:4.2.7-0ubuntu0.1+esm17 | Aug 6, 2026 |
| libavdevice58 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm16 | libavdevice58 7:4.4.2-0ubuntu0.22.04.1+esm16 | Aug 6, 2026 |
| libavfilter-extra · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm17 | libavfilter-extra 7:4.2.7-0ubuntu0.1+esm17 | Aug 6, 2026 |
| libavfilter-extra · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm16 | libavfilter-extra 7:4.4.2-0ubuntu0.22.04.1+esm16 | Aug 6, 2026 |
| libavfilter-extra7 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm17 | libavfilter-extra7 7:4.2.7-0ubuntu0.1+esm17 | Aug 6, 2026 |
| libavfilter-extra7 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm16 | libavfilter-extra7 7:4.4.2-0ubuntu0.22.04.1+esm16 | Aug 6, 2026 |
| libavfilter7 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm17 | libavfilter7 7:4.2.7-0ubuntu0.1+esm17 | Aug 6, 2026 |
| libavfilter7 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm16 | libavfilter7 7:4.4.2-0ubuntu0.22.04.1+esm16 | Aug 6, 2026 |
| libavformat-extra · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm16 | libavformat-extra 7:4.4.2-0ubuntu0.22.04.1+esm16 | Aug 6, 2026 |
| libavformat-extra58 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm16 | libavformat-extra58 7:4.4.2-0ubuntu0.22.04.1+esm16 | Aug 6, 2026 |
| libavformat58 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm17 | libavformat58 7:4.2.7-0ubuntu0.1+esm17 | Aug 6, 2026 |
| libavformat58 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm16 | libavformat58 7:4.4.2-0ubuntu0.22.04.1+esm16 | Aug 6, 2026 |
| libavresample4 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm17 | libavresample4 7:4.2.7-0ubuntu0.1+esm17 | Aug 6, 2026 |
| libavutil56 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm17 | libavutil56 7:4.2.7-0ubuntu0.1+esm17 | Aug 6, 2026 |
| libavutil56 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm16 | libavutil56 7:4.4.2-0ubuntu0.22.04.1+esm16 | Aug 6, 2026 |
| libpostproc55 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm17 | libpostproc55 7:4.2.7-0ubuntu0.1+esm17 | Aug 6, 2026 |
| libpostproc55 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm16 | libpostproc55 7:4.4.2-0ubuntu0.22.04.1+esm16 | Aug 6, 2026 |
| libswresample3 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm17 | libswresample3 7:4.2.7-0ubuntu0.1+esm17 | Aug 6, 2026 |
| libswresample3 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm16 | libswresample3 7:4.4.2-0ubuntu0.22.04.1+esm16 | Aug 6, 2026 |
| libswscale5 · Ubuntu 20.04 LTS (focal) | 7:4.2.7-0ubuntu0.1+esm17 | libswscale5 7:4.2.7-0ubuntu0.1+esm17 | Aug 6, 2026 |
| libswscale5 · Ubuntu 22.04.1 LTS (jammy) | 7:4.4.2-0ubuntu0.22.04.1+esm16 | libswscale5 7:4.4.2-0ubuntu0.22.04.1+esm16 | Aug 6, 2026 |
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