CVE-2026-48112
MEDIUM EPSS 18.2%
Published Jun 5, 20263w ago · Modified Jun 17, 20261w ago
6.5 CVSS 3.1
Published Jun 5, 2026 3w ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity None
Availability None
Threat Intelligence
EPSS Exploit Probability
18.2% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available
Weaknesses 2
CWE-125 Out-of-bounds Read Memory Safety
CWE-190 Integer Overflow or Wraparound Numeric Error
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| 7-zip | 7-zip | * | ≥9.34 – <26.01 |
References 1
- securitylab.github.com https://securitylab.github.com/advisories/GHSL-2026-115_GHSL-2026-122_7-zip/
Remediation
- securitylab.github.com https://securitylab.github.com/advisories/GHSL-2026-115_GHSL-2026-122_7-zip/