SonicWall NetExtender: Path Traversal Enables Root Write via tarball
CVE-2026-66152 Published on August 25, 2026

A Path traversal vulnerability in the SonicWall NetExtender Linux client file extractor component allows an attacker to write arbitrary file as root.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-66152 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

Path Traversal: '\..\filename'

The software uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '\..\filename' (leading backslash dot dot) sequences that can resolve to a location that is outside of that directory.


Products Associated with CVE-2026-66152

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SonicWall Netextender
 

Affected Versions

SonicWall NetExtender Version 10.3.5 and earlier versions is affected by CVE-2026-66152