CVE-2026-55781-poc

CVE-2026-55781 — DoS del analizador UFS de NanaZip Asignación de memoria sin límites en el controlador UFS de NanaZip mediante un campo fsbsize controlado por el atacante. Resumen Campo| Valor ---|--- CVE| CVE-2026-55781 Aviso| GHSA-m34h-jf84-m74h Proveedor| M2Team / NanaZip Afectado| NanaZip = 6...

CVE-2026-55781-poc

CVE-2026-55781 — DoS del analizador UFS de NanaZip Asignación de memoria sin límites en el controlador UFS de NanaZip mediante un campo fsbsize controlado por el atacante. Resumen Campo| Valor ---|--- CVE| CVE-2026-55781 Aviso| GHSA-m34h-jf84-m74h Proveedor| M2Team / NanaZip Afectado| NanaZip = 6...

Exploit for CVE-2026-55781

markdown CVE-2026-55781 — NanaZip UFS Parser DoS Unbounded...

CVE-2026-55781 NanaZip: Unbounded memory allocation (DoS) in NanaZip UFS parser via unvalidated fs_bsize/fs_fsize superblock fields

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 fsfsize fragment size, allowin...

CVE-2026-55781 NanaZip: Unbounded memory allocation (DoS) in NanaZip UFS parser via unvalidated fs_bsize/fs_fsize superblock fields

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 fsfsize fragment size, allowin...