CVE-2026-8461 | An out-of-bounds write vulnerability in FFmpeg's libavcodec … | CVSS 8.8 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.

Metadata

CVE ID: CVE-2026-8461
State: PUBLISHED
Assigner: JFROG
Reserved: 2026-05-13 09:59 UTC
Published: 2026-06-18 11:29 UTC
Last updated: 2026-06-19 03:55 UTC
Primary CWE: CWE-787
CWE-787 Out-of-bounds write
Vendor / Product: FFmpeg / FFmpeg
Sources: cve.org · NVD

Severity & Metrics

8.8 HIGH CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
FFmpeg	FFmpeg	—	0 < 8.1.2

Weakness (CWE)

CWE	Source	Description
CWE-787	cna	CWE-787 Out-of-bounds write

CVSS scores (1)

Score	Severity	Version	Source	Vector
8.8	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References (1)

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23159