CVEvulnerability

CVE-2021-20035

6.5 MEDIUM Known exploited Published 2021-09-27 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

SonicWall SMA100 Appliances OS Command Injection Vulnerability — SonicWall SMA100 Appliances

SonicWall SMA100 appliances contain an OS command injection vulnerability in the management interface that allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user, which could potentially lead to code execution.

Added to KEV: 2025-04-16
Remediation due: 2025-05-07
Ransomware use: Unknown
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.
Notes: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0022 ; https://nvd.nist.gov/vuln/detail/CVE-2021-20035

Status: Analyzed
Published: 2021-09-27
Last modified: 2026-06-17
Assigner: [email protected]
CVSS 3.1 ([email protected]): 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0): 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 ([email protected]): 6.8 MEDIUM — AV:N/AC:L/Au:S/C:N/I:N/A:C
Weaknesses: CWE-78

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.

Affected configurations

• sonicwall sma 200 firmware (< 9.0.0.11-31sv) • sonicwall sma 200 firmware (>= 10.2.0.0 < 10.2.0.8-37sv) • sonicwall sma 200 firmware (>= 10.2.1.0 < 10.2.1.1-19sv) • sonicwall sma 210 firmware (< 9.0.0.11-31sv) • sonicwall sma 210 firmware (>= 10.2.0.0 < 10.2.0.8-37sv) • sonicwall sma 210 firmware (>= 10.2.1.0 < 10.2.1.1-19sv) • sonicwall sma 400 firmware (< 9.0.0.11-31sv) • sonicwall sma 400 firmware (>= 10.2.0.0 < 10.2.0.8-37sv) • sonicwall sma 400 firmware (>= 10.2.1.0 < 10.2.1.1-19sv) • sonicwall sma 410 firmware (< 9.0.0.11-31sv) • sonicwall sma 410 firmware (>= 10.2.0.0 < 10.2.0.8-37sv) • sonicwall sma 410 firmware (>= 10.2.1.0 < 10.2.1.1-19sv) • sonicwall sma 500v (< 9.0.0.11-31sv) • sonicwall sma 500v (>= 10.2.0.0 < 10.2.0.8-37sv) • sonicwall sma 500v (>= 10.2.1.0 < 10.2.1.1-19sv)

Weakness · CWE (1)

CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness

References