FFmpeg through 9.0.2 contains an information disclosure vulnerability in decode_mvc2() in libavcodec/mvcdec.c that leaks uninitialized stack memory through unchecked palette indices. Attackers can supply a crafted MVC2 stream declaring few colors but referencing higher palette indices, copying process stack contents into decoded RGB frames.
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Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 09 Nov 2026 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | FFmpeg through 9.0.2 contains an information disclosure vulnerability in decode_mvc2() in libavcodec/mvcdec.c that leaks uninitialized stack memory through unchecked palette indices. Attackers can supply a crafted MVC2 stream declaring few colors but referencing higher palette indices, copying process stack contents into decoded RGB frames. | |
| Title | FFmpeg through 9.0.2 Uninitialized Stack Memory Disclosure via MVC2 Decoder | |
| First Time appeared |
Ffmpeg
Ffmpeg ffmpeg |
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| Weaknesses | CWE-908 | |
| CPEs | cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Ffmpeg
Ffmpeg ffmpeg |
|
| References |
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|
| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-11-09T19:11:13.086Z
Reserved: 2026-11-09T18:15:08.687Z
Link: CVE-2026-125190
No data.
Status : Received
Published: 2026-11-09T19:16:54.777
Modified: 2026-11-09T19:16:54.777
Link: CVE-2026-125190
No data.
OpenCVE Enrichment
Updated: 2026-11-09T20:45:15Z
Weaknesses