CVE-2021-20020: SonicWall Global Management System

Critical severity, CVSS 9.8. EPSS: 3.7% chance of exploitation in the next 30 days.

A command execution vulnerability in SonicWall GMS 9.3 allows a remote unauthenticated attacker to locally escalate privilege to root.

Affected products

• SonicWall Global Management System: version 9.3 only

Published 2021-04-10. Last modified 2026-06-17.