ffmpeg: FFmpeg versions from 3.0 up to, but not including, 9.0 contain an uninitialized heap memory read vulnerability in the...
CVE-2026-70630 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 Screenpresso decoder (libavcodec/screenpresso.c) that allows attackers to recover sensitive memory contents by supplying a crafted SPV1 packet with a valid zlib stream that decompresses fewer bytes than the full frame requires. The screenpresso_decode_frame() function fails to validate the produced byte count before calling av_image_copy_plane() to copy the complete frame dimensions from the persistent ctx->inflated_buf buffer, causing unwritten heap memory from prior allocations or prior frames to be copied into decoded output and potentially exposing sensitive data such as userspace addresses from persistent decoding services.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| ffmpeg · Debian 14 | 7:9.0.2-1 | DEBIAN-CVE-2026-70630 | 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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