CVE-2026-78328: SonicWall Network Security Manager Nsm

Critical severity, CVSS 9.1. EPSS: 0.5% chance of exploitation in the next 30 days.

A missing authorization vulnerability in the SonicWall Network Security Manager (NSM) On-Prem Management interface allows a lower-privileged Admin user to escalate privileges to SuperAdmin.

Affected products

• SonicWall Network Security Manager Nsm: up to and including 4.3.0

Published 2026-09-04. Last modified 2026-09-08.