CVE-2026-125200
MEDIUM
NVD
CVSS Score
5.5
Severity
MEDIUM
Published
Nov 09, 2026
Vendor
unknown
Description
FFmpeg through 9.0.2 contains a memory leak vulnerability in libavcodec/libx265.c because libx265_encode_frame() never frees the rpu.payload allocated by ff_dovi_rpu_generate(). Attackers can supply crafted Dolby Vision HEVC or AV1 files that leak one RPU allocation per encoded frame during libx265 transcoding, causing unbounded memory growth and denial of service.
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25416
- https://github.com/FFmpeg/FFmpeg
- https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/libx265.c#L880
- https://github.com/FFmpeg/FFmpeg/commit/8dc4af2bbbd0d650e299a3d327bd48c775120e11
- https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-memory-leak-via-libx265-dolby-vision-rpu-payloads