CVE-2026-48112
MEDIUM
6,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none
Description
AI Translation Available
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.
125
Out-of-bounds Read
DraftCommon Consequences
Security Scopes Affected:
Confidentiality
Availability
Other
Potential Impacts:
Read Memory
Bypass Protection Mechanism
Dos: Crash, Exit, Or Restart
Varies By Context
Applicable Platforms
Languages:
Memory-Unsafe, C, C++
Technologies:
ICS/OT
190
Integer Overflow or Wraparound
StableCommon Consequences
Security Scopes Affected:
Availability
Integrity
Confidentiality
Access Control
Other
Potential Impacts:
Dos: Crash, Exit, Or Restart
Dos: Resource Consumption (Memory)
Dos: Instability
Modify Memory
Execute Unauthorized Code Or Commands
Bypass Protection Mechanism
Alter Execution Logic
Dos: Resource Consumption (Cpu)
Applicable Platforms
Languages:
Not Language-Specific, C
https://securitylab.github.com/advisories/GHSL-2026-115_GHSL-2026-122_7-zip/