Vulnerability Intelligence Report
Heap out-of-bounds write via odd slice_height in FFmpeg MagicYUV decoder
CVE-2026-8461
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.
No Active Exploit Signals
CVSS Base Score
8.8
HIGH
Exploitability:2.9
Impact Score:5.9
EPSS Probability:0.48%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-787 ↗CWE-787 Out-of-bounds write
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| FFmpeg | FFmpeg | 0 < 8.1.2 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.477%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | JFrog · Vendor · Israel |
| Reserved | 2026-05-13T09:59:49 |
| Published | 2026-06-18T11:29:00 |
| Patch Date | 2026-06-18 |
| Last Updated | 2026-07-23T12:08:03 |
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