ACTIVELY EXPLOITED

CVE-2021-20035: SonicWall SMA100 Appliances OS Command Injection Vulnerability

Facts
VendorSonicWall
ProductSMA100 Appliances
Actively exploitedYes
Added to CISA KEV16 Apr 2025
CISA federal deadline7 May 2025
Weakness (CWE)CWE-78

Required action (CISA's text)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Description (NVD)

SonicWall SMA100 appliances contain an OS command injection vulnerability in the management interface that allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user, which could potentially lead to code execution.

SOURCES

Other SonicWall flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.