ClosedPatched

SonicWall SMA100 Appliances: SMA100 Appliances OS Command Injection Vulnerability

SonicWall SMA100 Appliances

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. Added to CISA KEV on 2025-04-16.

Why this severity: CVSS 6.5 (CISA ADP, v3.1); actively exploited (CISA KEV)

Started: Apr 16, 2025
Closed: Apr 16, 2025
CVE: CVE-2021-20035

Follow this incident

Updated Apr 16, 2025

Affected

See vendor advisory / CISA notes (versions not always listed in KEV feed)

Fixed in

See vendor advisory linked in sources

Timeline1

Apr 16, 2025
CISA added CVE-2021-20035 to the KEV catalog (due 2025-05-07).

Advisories3

Notes & caveats

Derived from CISA KEV JSON feed catalogVersion 2026.10.21. CVSS from the CVE record (cvelistV5). Exact affected/fixed version strings are not always in the KEV record; verify against the vendor advisory URL. startedAt uses dateAdded (exploitation may have begun earlier; many entries are older CVEs newly confirmed as exploited in 2025).

Get an email when a new major security incident drops. No spam, unsubscribe any time.

Get notified