CVE-2026-125250highCWE-122

CVE-2026-125250: fallo de gravedad alta en FFmpeg

FFmpeg through 9.0.2 GIF Encoder Heap Buffer Overflow via shrunk_buf Remap

Publicada el

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Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

18Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 8.5
FFmpeg through 9.0.2 contains a heap buffer overflow in the GIF encoder's gif_image_write_image() in libavcodec/gif.c because shrunk_buf is sized from the first frame's linesize. Attackers can supply PAL8 video whose frame linesize grows mid-stream, causing remap_frame_to_palette() to write past shrunk_buf and corrupt the heap during GIF transcoding.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Productos afectados
FFmpeg · FFmpeg
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