CVE-2026-66152: CWE-29 Path traversal: '\..\filename' in SonicWall NetExtender
Description
CVE-2026-66152 is a path traversal vulnerability in the SonicWall NetExtender Linux client file extractor component. This flaw allows an attacker to write arbitrary files with root privileges by exploiting improper handling of file paths. The vulnerability has a high severity score of 8.8 and impacts confidentiality, integrity, and availability. No affected versions or patch information are provided in the available data.
CVSS v3.1
Score 8.8high
Affected software
SonicWall
NetExtender
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a path traversal issue (CWE-29) in the SonicWall NetExtender Linux client file extractor, which permits an attacker to write arbitrary files as root by using specially crafted file paths such as '\..\filename'. The vulnerability is publicly known and assigned CVE-2026-66152 with a CVSS v3.1 base score of 8.8, indicating high impact. The vendor has not provided specific remediation details or affected version information at this time.
Potential Impact
Successful exploitation allows an unauthenticated attacker to write arbitrary files with root privileges on the affected system, potentially leading to full system compromise including confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should monitor SonicWall advisories for updates and consider restricting access to vulnerable components where possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- sonicwall
- Date Reserved
- 2026-07-24T08:34:11.798Z
- State
- PUBLISHED
Threat ID: 6a8df60eacd9273b49a89151
Added to database: 08/25/2026, 20:07:42 UTC
Last enriched: 09/07/2026, 15:37:46 UTC
Last updated: 10/09/2026, 18:48:22 UTC
Views: 93
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