CVE-2026-32740
Gravedad CVSS v3.1:
ALTA
Tipo:
CWE-787
Escritura fuera de límites
Fecha de publicación:
19/05/2026
Última modificación:
20/05/2026
Descripción
*** Pendiente de traducción *** libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.21.2 and prior contain a heap-buffer-overflow (write) vulnerability in the grid tile compositing, allowing an attacker to write 64 bytes of fully attacker-controlled data past the end of a chroma plane heap allocation by crafting a HEIF/AVIF file with a 1×4 grid of odd-height tiles. The overflow is triggered during normal image decoding with default build configuration. The written bytes are chroma (Cb/Cr) pixel values from the attacking tile, giving the attacker full control over the overflow content. This issue has been fixed in version 1.22.0.
Impacto
Puntuación base 3.x
8.80
Gravedad 3.x
ALTA
Productos y versiones vulnerables
| CPE | Desde | Hasta |
|---|---|---|
| cpe:2.3:a:struktur:libheif:*:*:*:*:*:*:*:* | 1.22.0 (excluyendo) |
Para consultar la lista completa de nombres de CPE con productos y versiones, ver esta página



