MEDIUM CISA KEV

CVE-2021-20035

CVSS v3

6.5

MEDIUM

EPSS Score

4.0%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

SSVC status

Description

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.

CISA Known Exploited Vulnerability

Date Added
4/16/2025
Patch Due Date
5/7/2025
Ransomware Use
Unknown

Technical details

Published
9/27/2021

Frequently asked questions

What is CVE-2021-20035?

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.

Is CVE-2021-20035 actively exploited?

Yes. CVE-2021-20035 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 5/7/2025.

What is the CVSS score for CVE-2021-20035?

CVE-2021-20035 has a CVSS v3 base score of 6.5 (MEDIUM severity).

Is CVE-2021-20035 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.