Vulnerability Report

CVE-2021-20035

CISA KEV Active

Title: Command Injection

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2021-20035.

CWE Category CWE-78
Published Date Sep 27, 2021
Modified Date Oct 31, 2025
Exploit Status Not Found
Score 6.5 CVSS v3.1
Exploit Probability (EPSS)
4.18%

Vulnerability Summary

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.

Impacted Vendors

S
sonicwall 5

Reference Links

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0022 https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0022 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20035
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity MEDIUM
6.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
6.8
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:S/C:N/I:N/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-20035 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.