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Vulnerability record · CVE-2026-8461 · published 18 June 2026

CVE-2026-8461: Out-of-bounds write vulnerability

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.

8.8 CVSS 3.1 High EPSS 1.0% · top 37.7% CWE-787 · Out-of-bounds write Awaiting Analysis
8.8CVSS 3.1 base score
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
23 Jul 2026Last modified by NVD

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.

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

References

LinkTags
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23159
https://access.redhat.com/errata/RHSA-2026:43711
https://access.redhat.com/security/cve/CVE-2026-8461
https://bugzilla.redhat.com/show_bug.cgi?id=2490308
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8461.json

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Source: NIST National Vulnerability Database (record CVE-2026-8461), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.