SARA / Free Tools / CVE / CVE-2021-20035

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

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.

CVSS
EPSS
3.97% (top 11.80%)
CWE
CWE-78
Published
2021-09-27T17:20:12.000Z
Last modified
2025-10-21T23:25:31.035Z
CVSS vector
CISA KEV — Actively Exploited
Added to KEV
2025-04-16
BOD 22-01 due
2025-05-07
Ransomware use
Unknown

01What is this vulnerability?

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.

02Affected products

VendorProductVersions
SonicWallSMA1009.0.0.10-28sv and earlier, 10.2.0.7-34sv and earlier, 10.2.1.0-17sv and earlier

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2025-04-16. Ransomware use: Unknown.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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