ffmpeg: FFmpeg versions 8.0 through 8.1.2 contains a stack buffer overflow vulnerability in the Vulkan HEVC hardware decoder...
CVE-2026-64831 is fixed in 14 products on 1 platform, first by DEBIAN-CVE-2026-64831, released July 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.
FFmpeg versions 8.0 through 8.1.2 contains a stack buffer overflow vulnerability in the Vulkan HEVC hardware decoder that allows remote attackers to overwrite return addresses and adjacent stack frames by supplying a crafted HEVC/H.265 bitstream. Attackers can embed a malicious vps_num_hrd_parameters value exceeding HEVC_MAX_SUB_LAYERS in any supported container format to overflow stack-allocated arrays in the vk_hevc_end_frame function, potentially achieving arbitrary code execution.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| ffmpeg · Debian 14 | 7:9.0.2-1 | DEBIAN-CVE-2026-64831 | Jul 22, 2026 |
| ffmpeg · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | ffmpeg 7:8.0.1-3ubuntu2+esm4 | Aug 19, 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-extra62 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavcodec-extra62 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libavcodec62 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavcodec62 7:8.0.1-3ubuntu2+esm4 | Aug 19, 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 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 |
| libavfilter11 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavfilter11 7:8.0.1-3ubuntu2+esm4 | Aug 19, 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-extra62 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavformat-extra62 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libavformat62 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavformat62 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libavutil60 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libavutil60 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libswresample6 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libswresample6 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
| libswscale9 · Ubuntu 26.04.1 LTS (resolute) | 7:8.0.1-3ubuntu2+esm4 | libswscale9 7:8.0.1-3ubuntu2+esm4 | Aug 19, 2026 |
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