Actively exploited in the wild
SonicWall SMA100 Appliances OS Command Injection Vulnerability
SonicWall - SMA100 Appliances · Listed in the CISA KEV since 2025-04-16. This indicates confirmed attacks in production environments.
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CVE-2021-20035
MediumCVSS 6.5KEVSummary
Improper neutralization of special elements in the SMA100 management interface allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user which potentially leads to DoS.
Risk Assessment
An authenticated attacker could inject commands and cause a denial of service, disrupting system operations.
Recommendation
Update SMA100 software to the latest version containing the fix.
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Original NVD description (English source)
Improper neutralization of special elements in the SMA100 management interface allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user which potentially leads to DoS.