🛡️ CVE-2026-48112
🟡 CVSS 6.5 — Medium ⚠️ Exploit Public CWE-125 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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-style __.SYMDEF symbol table, the ParseLibSymbols function reads a 32-bit namesSize field via Get32 at a position that can equal the buffer size, reading 4 bytes past the end of the heap allocation. This reads uninitialized heap data under the default allocator. Version 26.01 patches the issue.

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE CWE-125
Public Exploit ⚠️ Yes
Source NVD
Published 2026-06-05
Updated 2026-06-09
Modified 2026-06-08

Affected Packages

Software From version Fixed in
7-zip 9.34 26.01
unknown — —

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