CVE-2021-20035
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CVSS Score
V3.1EPSS Score
v2025.03.14There is a 14.0% chance that this vulnerability will be exploited in the wild within the next 30 days.
Attack Vector Metrics
Impact Metrics
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.
Available Exploits
Related News
A vulnerability was identified in SonicWall Products. A remote attacker could exploit this vulnerability to trigger remote code execution on the targeted system. Note: Exploit in the wild has been detected for CVE-2021-20035 that allows remote code exec…
Threat actors are actively exploiting a remote code execution flaw in SonicWall Secure Mobile Access (SMA) appliances since January 2025. Arctic Wolf researchers warn that threat actors actively exploit a vulnerability, tracked as CVE-2021-20035 (CVSS score o…
CVE-2021-20035, an old vulnerability affecting Sonicwall Secure Mobile Access (SMA) 100 series appliances, is being exploited by attackers. Sonicwall confirmed it by updating the original security advisory to reflect the new state of play, and by changing the…
The Cybersecurity and Infrastructure Security Agency (CISA) has issued an urgent alert, adding CVE-2021-20035 to its Known Exploited The post CISA Alert: Actively Exploited SonicWall SMA100 Vulnerability appeared first on Daily CyberSecurity.
CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2021-20035 SonicWall SMA100 Appliances OS Command Injection Vulnerability These types of vulnerabilities are…
Affected Products
Affected Versions:
Known Exploited Vulnerability
This vulnerability is actively being exploited in the wild
Remediation Status
Due Date
Added to KEV
Required Action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected Product
Ransomware Risk
GitHub Security Advisories
Community-driven vulnerability intelligence from GitHub
Advisory Details
CVSS Scoring
CVSS Score
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: April 16, 2025