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CVE-2026-8461

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

Published: Jun 18, 2026Updated: Jun 22, 2026 Sources: CVE List NVDCWE-787
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.3%
Top 73.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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 Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-787

Affected Products

FFmpegFFmpeg
Library
OSS Libraries / generic-library
ffmpegoss-projectUSOSS Librariesaka libavcodec

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

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

Timeline

Published
Jun 18, 2026
Last Updated
Jun 22, 2026
News mentions
1

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