CVE-2026-55783

NanaZip is the 7-Zip derivative intended for the modern Windows experience. Prior to 6.5.1749.0, NanaZip's seven in-house IInArchive handlers in NanaZip.Codecs unconditionally dereference the caller-supplied Indices array inside Extract when the archive engine signals extract everything by passin...

CVE-2026-55782

NanaZip is the 7-Zip derivative intended for the modern Windows experience. Prior to 6.5.1749.0, NanaZip's WebAssembly archive handler in NanaZip.Codecs.Archive.WebAssembly.cpp allocates buffers from attacker-controlled 32-bit section and custom-name length fields without validating them against...

CVE-2026-55780

NanaZip is the 7-Zip derivative intended for the modern Windows experience. Prior to 6.5.1749.0, NanaZip's .NET single-file bundle handler in NanaZip.Codecs.Archive.DotNetSingleFile.cpp sizes its extraction buffer from the bundle entry Size field, which is only checked for sign and is not validat...

CVE-2026-55781

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...

EUVD-2026-42957

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

The CVE affects NanaZip (7-Zip derivative) prior to version 6.5.1749.0, specifically the UFS/FFS image handler in NanaZip.Codecs.Archive.Ufs.cpp. The root cause is that superblock considerations validate the block size only against MINBSIZE and do not validate the fs_fsize fragment size, allowing...

CVE-2026-55780 NanaZip: Uncaught exception / unbounded allocation in NanaZip .NET single-file Extract() via unvalidated entry Size

NanaZip is the 7-Zip derivative intended for the modern Windows experience. Prior to 6.5.1749.0, NanaZip's .NET single-file bundle handler in NanaZip.Codecs.Archive.DotNetSingleFile.cpp sizes its extraction buffer from the bundle entry Size field, which is only checked for sign and is not validat...

CVE-2026-55780

NanaZip (7‑Zip derivative) prior to version 6.5.1749.0 is vulnerable due to its .NET single-file bundle handler in NanaZip.Codecs.Archive.DotNetSingleFile.cpp, which sizes the extraction buffer from the bundle entry Size field without validating against the real file size. This allows an attacker...

EUVD-2026-42955

NanaZip is the 7-Zip derivative intended for the modern Windows experience. Prior to 6.5.1749.0, NanaZip's seven in-house IInArchive handlers in NanaZip.Codecs unconditionally dereference the caller-supplied Indices array inside Extract when the archive engine signals extract everything by passin...

CVE-2026-55783

NanaZip (a 7‑Zip derivative) is affected prior to version 6.5.1749.0. The in‑house IInArchive handlers in NanaZip.Codecs dereference the caller‑supplied Indices array during Extract when Indices is NULL and NumItems is 0xFFFFFFFF, in the code path for a full archive extraction (Test or Extract al...

CVE-2026-55783 NanaZip: NULL pointer dereference in Extract() of all seven NanaZip custom archive handlers when extracting/testing the whole archive

NanaZip is the 7-Zip derivative intended for the modern Windows experience. Prior to 6.5.1749.0, NanaZip's seven in-house IInArchive handlers in NanaZip.Codecs unconditionally dereference the caller-supplied Indices array inside Extract when the archive engine signals extract everything by passin...

CVE-2026-55782

NanaZip (a 7-Zip derivative) is affected by an unbounded memory allocation vulnerability in its WebAssembly archive handler (NanaZip.Codecs.Archive.WebAssembly.cpp). The issue arises when buffers are allocated from attacker-controlled 32-bit section and custom-name length fields without cross-che...

CVE-2026-47223

NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap out-of-bounds read exists in the Android Verified Boot AVB vbmeta image parser in NanaZip via the upstream 7-Zip AvbHandler. A 32-bit unsigned integer overflow ...

CVE-2026-47222

NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap out-of-bounds read exists in the Android Verified Boot AVB vbmeta image parser in NanaZip via the upstream 7-Zip AvbHandler. An unsigned integer underflow in a...

CVE-2026-47224

NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap buffer-overflow read exists in the LVM2 physical-volume metadata parser in NanaZip via the upstream 7-Zip LvmHandler. The vulnerability is triggered when openin...

CVE-2026-47223 NanaZip: Heap out-of-bounds read in NanaZip AVB hashtree descriptor parser via 32-bit unsigned integer overflow

NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap out-of-bounds read exists in the Android Verified Boot AVB vbmeta image parser in NanaZip via the upstream 7-Zip AvbHandler. A 32-bit unsigned integer overflow ...

EUVD-2026-36508

NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap out-of-bounds read exists in the Android Verified Boot AVB vbmeta image parser in NanaZip via the upstream 7-Zip AvbHandler. A 32-bit unsigned integer overflow ...

CVE-2026-47223

NanaZip (derivative of 7‑Zip) is affected from 3.0.1000.0 up to before 6.0.1698.0. The vulnerability is a heap out‑of‑bounds read in the AVB vbmeta image parser (AvbHandler) caused by a 32‑bit unsigned overflow in the bounds check (pos + ht.salt_len > descSize) that lets an attacker‑controlled...

CVE-2026-47223 NanaZip: Heap out-of-bounds read in NanaZip AVB hashtree descriptor parser via 32-bit unsigned integer overflow

NanaZip is the 7-Zip derivative intended for the modern Windows experience. From version 3.0.1000.0 to before version 6.0.1698.0, a heap out-of-bounds read exists in the Android Verified Boot AVB vbmeta image parser in NanaZip via the upstream 7-Zip AvbHandler. A 32-bit unsigned integer overflow ...