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CVE-2026-48112

6.5 MEDIUM

7-Zip is a file archiver with a high compression ratio

Published: 2026-06-05 · Last updated: 2026-06-08

Severity and scoring

CVSS
6.5 MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE
CWE-125, CWE-190

Affected products

VendorProduct
7-zip7-zip

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.

Source: NVD

References

Related CVEs

Same vendor

  • CVE-2026-48111 — 7-Zip is a file archiver with a high compression ratio (4.3 MEDIUM)
  • CVE-2026-48104 — 7-Zip is a file archiver with a high compression ratio (4.2 MEDIUM)
  • CVE-2026-48103 — 7-Zip is a file archiver with a high compression ratio (4.3 MEDIUM)
  • CVE-2026-48102 — 7-Zip is a file archiver with a high compression ratio (3.1 LOW)
  • CVE-2026-48101 — 7-Zip is a file archiver with a high compression ratio (6.5 MEDIUM)

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