CVE-2021-20050: SonicWall SMA 100 Firmware

High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days.

An Improper Access Control Vulnerability in the SMA100 series leads to multiple restricted management APIs being accessible without a user login, potentially exposing configuration meta-data.

Affected products

• SonicWall SMA 100 Firmware: before 10.0.0.0 (fixed in 10.0.0.0); version 10.2.0.8-37sv only; version 10.2.1.2-24sv only
• SonicWall SMA 200 Firmware: before 10.0.0.0 (fixed in 10.0.0.0); version 10.2.0.8-37sv only; version 10.2.1.2-24sv only
• SonicWall SMA 210 Firmware: before 10.0.0.0 (fixed in 10.0.0.0); version 10.2.0.8-37sv only; version 10.2.1.2-24sv only
• SonicWall SMA 400 Firmware: before 10.0.0.0 (fixed in 10.0.0.0); version 10.2.0.8-37sv only; version 10.2.1.2-24sv only
• SonicWall SMA 410 Firmware: before 10.0.0.0 (fixed in 10.0.0.0); version 10.2.0.8-37sv only; version 10.2.1.2-24sv only
• SonicWall SMA 500v Firmware: before 10.0.0.0 (fixed in 10.0.0.0); version 10.2.0.8-37sv only; version 10.2.1.2-24sv only

Published 2021-12-23. Last modified 2026-06-17.