CVE-2026-81939

CriticalCVSS 9.1/10Last modified Sep 8, 2026

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.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Sep 4, 2026
Last modified
Sep 8, 2026
NVD status
Awaiting Analysis

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CVE-2026-81939: Critical severity, CVSS 9.1 | Vulnix