CVE-2026-66036
Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-122
Desbordamiento de búfer basado en memoria dinámica (Heap)
Fecha de publicación:
24/07/2026
Última modificación:
29/07/2026
Descripción
*** Pendiente de traducción *** FFmpeg through 8.1.2, fixed in commit 5d7112c, contains a heap out-of-bounds write vulnerability in the vf_hqdn3d filter that allows attackers to corrupt heap memory by supplying a crafted video whose frame resolution increases between frames when filtergraph reinitialization is disabled via the -reinit_filter 0 option. Attackers can provide a malicious video input where vf_hqdn3d.config_input() allocates undersized per-plane line-history buffers based on the initial frame width, and subsequent larger frames cause denoise_spatial() to write beyond the allocation boundary, resulting in heap memory corruption.
Impacto
Puntuación base 4.0
7.70
Gravedad 4.0
ALTA
Puntuación base 3.x
8.80
Gravedad 3.x
ALTA



