CVE-2026-55781
Gravedad CVSS v4.0:
BAJA
Tipo:
CWE-400
Consumo de recursos no controlado (Agotamiento de recursos)
Fecha de publicación:
10/07/2026
Última modificación:
10/07/2026
Descripción
*** Pendiente de traducción *** NanaZip is the 7-Zip derivative intended for the modern Windows experience. Prior to 6.5.1749.0, NanaZip's UFS and FFS image handler in NanaZip.Codecs.Archive.Ufs.cpp validates the superblock block size only against the MINBSIZE lower bound and does not validate the fs_fsize fragment size, allowing attacker-controlled 32-bit fields to flow into indirect-block, directory, and extraction buffer allocations. A tiny crafted UFS image can force multi-gigabyte allocations during open or extraction, causing memory exhaustion or process termination. This issue is fixed in version 6.5.1749.0.
Impacto
Puntuación base 4.0
2.40
Gravedad 4.0
BAJA