CVE-2020-5129: SonicWall SMA1000 Firmware

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

A vulnerability in the SonicWall SMA1000 HTTP Extraweb server allows an unauthenticated remote attacker to cause HTTP server crash which leads to Denial of Service. This vulnerability affected SMA1000 Version 12.1.0-06411 and earlier.

Affected products

• SonicWall SMA1000 Firmware: up to and including 12.1.0-06411

Published 2020-03-26. Last modified 2026-06-17.