CVE-2026-8461

High

Description

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.

SeverityHigh

CVSS8.8

Exploit probability—

ProductFFmpeg

PublishedJun 18, 2026

First seenJun 18, 2026

Weakness typeCWE-787Out-of-bounds write

How to fix

Update

FFmpeg FFmpeg8.1.2 or later

Vendor advisories

access.redhat.com/errata/RHSA-2026:43711

Affected products

Product	Affected versions	Fixed in
FFmpeg FFmpeg	v < 8.1.2	8.1.2

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