CVE-2026-125244
Received Received - Intake

Out-of-Bounds Write in FFmpeg VVC Decoder

Publication date: 2026-11-09

Last updated on: 2026-11-09

Assigner: VulnCheck

Description
FFmpeg before 8.1.3 and 9.x before 9.0.2 contains an out-of-bounds write vulnerability in the VVC decoder's sh_entry_points() function in libavcodec/vvc/ps.c. Attackers can supply a crafted VVC (H.266) bitstream whose SPS/PPS tile and WPP layout produces excess entry points, overflowing entry_point_start_ctu and corrupting decoder memory.

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Meta Information

Published
2026-11-09
Last Modified
2026-11-09
Generated
2026-11-09
EPSS Evaluated
N/A
NVD
CVE-2026-125244
EUVD
EUVD-2026-120194

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
FFmpeg FFmpeg From 7.0 (inc) to 8.1.3 (exc)
FFmpeg FFmpeg From 9.0 (inc) to 9.0.2 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.

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