CVE-2026-8461 HIGH

CVE-2026-8461: Heap out-of-bounds write via odd slice_height in FFmpeg MagicYUV decoder

Vendor Ffmpeg
Product FFmpeg
Weakness CWE-787
Published June 18, 2026
Last update June 30, 2026
View on NVD All CVEs

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 18, 2026 CVE published
June 30, 2026 Record updated