CVE-2026-125206: fallo de gravedad baja en FFmpeg
FFmpeg through 9.0.2 Out-of-Bounds Read via prores_ks Interlaced Alpha Encoding
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
5Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 2
FFmpeg through 9.0.2 contains an out-of-bounds read vulnerability in the prores_ks encoder's get_alpha_data() that reads before the blocks buffer for interlaced frames with odd heights. Attackers can supply video with alpha and odd height encoded to interlaced ProRes 4444, causing out-of-bounds memory to be encoded into the output alpha plane.
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Productos afectados
FFmpeg · FFmpegCVEs relacionadas — FFmpeg
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Referencias
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24490https://github.com/FFmpeg/FFmpeghttps://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/proresenc_kostya.c#L150https://github.com/FFmpeg/FFmpeg/commit/9edd06f8612c242b83bf9e3d14aa85180015a211https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-out-of-bounds-read-via-prores-ks-interlaced-alpha-encoding