CVE-2021-20035

6.5 MEDIUM CISA KEV - Actively Exploited

Published: September 27, 2021 Modified: October 31, 2025

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0022

Source: PSIRT@sonicwall.com

Vendor Advisory

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0022

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20035

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

US Government Resource

3 reference(s) from NVD

Quick Stats

CVSS v3 Score

6.5 / 10.0

EPSS (Exploit Probability)

4.5%

89th percentile

Exploitation Status

Actively Exploited

Remediation due: 2025-05-07

Weaknesses (CWE)

CWE-78 CWE-78

Affected Vendors

sonicwall

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