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Critical · 9.1 CVE-2026-81939 EUVD-2026-71681GHSA-8249-x575-f5g2

A Zip Slip vulnerability in the SonicWall Network Security Manager (NSM) On-Prem file upload and archive processing functionality allows an…

Published Sep 4, 2026 · Updated Sep 4, 2026 · Assigned by sonicwall

Vendor: SonicWall Product: Network Security Manager (NSM) Category: Network devices

Description

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.

Affected products

VendorProductAffectedFixed
SonicWall Network Security Manager (NSM) 4.3.0 and earlier versions —

References