CVE-2021-20035SonicWallFirewall and VPNApril 16, 2025

SonicWall SMA100 Appliances OS Command Injection Vulnerability

Medium 6.5Actively exploited

Description

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.

What to do

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

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Details

Vendor
SonicWall
Product
SonicWall SMA100
CVE
CVE-2021-20035
Affected versions
SMA100 9.0: up to 9.0.0.10-28sv
SMA100 10.2: up to 10.2.0.7-34sv; up to 10.2.1.0-17sv (from the advisory and NVD; check the exact builds in the official advisory)
CVSS score
6.5
Actively exploited
Yes, listed in the CISA Known Exploited Vulnerabilities catalog
CISA due date
May 7, 2025 (deadline for US federal agencies: a good benchmark for you too)
Source
CISA KEV – original advisory
Published
April 16, 2025

The description and the recommended action are quoted from the public advisory; severity, exploitation status and affected versions are compiled automatically from public sources and may contain errors. The vendor's original advisory prevails: check it before taking action. This information is provided without warranty and does not replace a professional assessment.

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