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CVE-2026-96611

Publié : 23 septembre 2026
Modifié : 23 septembre 2026
Lien officiel NVD
Score CVSS
6.9
MEDIUM

Description détaillée

FFmpeg before 9.0 has a signed integer overflow in libavformat/mov.c. In mov_read_ispe(), uint32_t width/height values from a crafted HEIF ispe box are stored into signed int fields without bounds checking, allowing values exceeding INT_MAX to become negative. In read_image_grid(), accumulating these values causes signed integer overflow (undefined behavior per C17 section 6.5), which on x86 wraps to a small positive value, bypassing downstream validity checks.

Vecteur d'attaque (CVSS)

Vecteur brut :CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Références et Patchs