CVE-2026-125185
FFmpeg through 9.0.2 Division by Zero via AFGS1 Film Grain Scaling Points
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
FFmpeg through 9.0.2 contains a division by zero vulnerability in ff_aom_parse_film_grain_sets() that fails to reject AFGS1 scaling points with repeated x values. Attackers can supply crafted HEVC or VVC files with zero-increment scaling points in T.35 SEI messages, causing generate_scaling() to divide by zero and crash the decoder.
| CWE | CWE-369 |
| Vendor | ffmpeg |
| Product | ffmpeg |
| Published | Nov 9, 2026 |
| Last Updated | Nov 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
FFmpeg / FFmpeg
0 ≤ 9.0.2
References
code.ffmpeg.org: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25572 github.com: https://github.com/FFmpeg/FFmpeg/commit/b8daf520dd03f6139aa053acb768f3c4594599d9 github.com: https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/aom_film_grain_template.c#L457 github.com: https://github.com/FFmpeg/FFmpeg vulncheck.com: https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-division-by-zero-via-afgs1-film-grain-scaling-points
Credits
Joshua Rogers (AISLE Research) Michael Niedermayer