CVE-2026-8461highCWE-787

CVE-2026-8461: high-severity vulnerability in FFmpeg

Heap out-of-bounds write via odd slice_height in FFmpeg MagicYUV decoder

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41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 8.8epss 1.6%
from disclosure to weapon5 days
Published on NVDJun 18
1st PoC+5d
An out-of-bounds write vulnerability in FFmpeg's libavcodec library, specifically in the MagicYUV decoder, allows denial-of-service and, in some cases, can be exploited for remote code execution. This vulnerability is associated with the file libavcodec/magicyuv.C. This issue affects FFmpeg before version 8.1.2.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
FFmpeg · FFmpeg
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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