10 results · Clear filters · Feed
-
Medium 5.5
7-Zip < 26.03 SquashFS Uninitialized Memory Disclosure via UID/GID Table
7-Zip before 26.03 contains an uninitialized memory disclosure vulnerability in the SquashFS v4 archive handler (SquashfsHandler.cpp) that allows attackers to leak heap memory by crafting a malicious archive where the superblock’s no_ids field is set so that …
-
Medium 6.5
GHSL-2026-122 7-Zip Ar SYMDEF OOB Read
7-Zip is a file archiver with a high compression ratio. Versions 9.18 through 26.00 contain a heap out-of-bounds read in 7-Zip Ar handler BSD SYMDEF parser. A 4-byte heap out-of-bounds read exists in the Unix ar archive parser in 7-Zip. When parsing a BSD-sty…
-
Medium 4.3
GHSL-2026-121 7-Zip UEFI DEPEX OOB Read
7-Zip is a file archiver with a high compression ratio. Versions 9.21 through 26.00 contain an off-by-one out-of-bounds read vulnerability in the ParseDepedencyExpression function of the UEFI firmware image parser(CPP/7zip/Archive/UefiHandler.cpp). The functi…
-
Medium 4.2
GHSL-2026-120: 7-Zip SquashFS BlockToNode uninitialized heap read
7-Zip is a file archiver with a high compression ratio. Versions 9.18 through 26.00 contain an uninitialized heap read in the SquashFS archive handler caused by a sparsely populated index array. In the SquashFS handler, _blockToNode is allocated with capacity…
-
Medium 4.3
GHSL-2026-119 7-Zip WIM SecurityId OOB read
7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain an off-by-one heap out-of-bounds read in the WIM (Windows Imaging) archive handler's security descriptor lookup. In CHandler::GetSecurity (CPP/7zip/Archive/Wim/WimHand…
-
Medium 6.5
GHSL-2026-117: 7-Zip UEFI Capsule uninitialized heap memory disclosure
7-Zip is a file archiver with a high compression ratio. Versions 9.21 through 26.00 contain an An uninitialized memory disclosure vulnerability in the UEFI capsule (.scap) parser in 7-Zip. The OpenCapsule function allocates a heap buffer of attacker-declared …
-
Medium 4.3
7-Zip SquashFS Fragment Offset Overflow (GHSL-2026-116)
7-Zip is a file archiver with a high compression ratio. Versions 9.34 through 26.00 contain a heap memory disclosure via SquashFS fragment offset integer overflow on 32-bit builds. 32-bit integer overflow in the SquashFS ReadBlock function allows an attacker-…
-
Medium 5.5
GHSL-2025-059 - 7-Zip - Null pointer array write attempt in NArchive::NCom::CHandler::GetStream
7-Zip is a file archiver with a high compression ratio. 7-Zip supports extracting from Compound Documents. Prior to version 25.0.0, a null pointer dereference in the Compound handler may lead to denial of service. Version 25.0.0 contains a fix cor the issue.
-
Medium 5.5
GHSL-2025-058 - 7-Zip Multi-byte write heap buffer overflow in NCompress::NRar5::CDecoder
7-Zip is a file archiver with a high compression ratio. Zeroes written outside heap buffer in RAR5 handler may lead to memory corruption and denial of service in versions of 7-Zip prior to 25.0.0. Version 25.0.0 contains a fix for the issue.
-
Medium 6.5
7-Zip CopyCoder Infinite Loop Denial-of-Service Vulnerability
7-Zip CopyCoder Infinite Loop Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of 7-Zip. Interaction with this library is required to exploit this vulnerability but a…