Vulnerability Report

CVE-2021-20016

CISA KEV Active

Title: SonicWall SSLVPN SMA100 SQL Injection

SQLi, Information Disclosure

Proof Of Concept

No public PoC currently indexed for CVE-2021-20016.

CWE Category CWE-89
Published Date Feb 04, 2021
Modified Date Oct 31, 2025
Exploit Status Not Found
Score 9.8 CVSS v3.1
Exploit Probability (EPSS)
40.04%

Vulnerability Summary

CVE-2021-20016: A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access username password and other session related information. This vulnerability impacts SMA100 build version 10.x.

Impacted Vendors

S
sonicwall 6

Reference Links

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001 https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20016
CVSS v3.1
Source Entity [email protected]
Severity CRITICAL
9.8
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:N/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity CRITICAL
9.8
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:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.5
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-20016 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:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.