CVE-2026-81939

CRITICAL CVSS 3.1: 9.1 EPSS 0.68%
Updated Sep 08, 2026
Sonicwall
Parameter Value
CVSS 9.1 (CRITICAL)
Type CWE-22 (Path Traversal)
Vendor Sonicwall
Public PoC No

A Zip Slip vulnerability in the SonicWall Network Security Manager (NSM) On-Prem file upload and archive processing functionality allows an attacker to extract files outside the intended destination directory using a specially crafted archive.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)