What is CVE-2021-20016?

CVE-2021-20016 is a vulnerability in Sonicwall Sma100, classified under SQL Injection. Published 2021-02-03.

Is CVE-2021-20016 known to be exploited?

Yes. CVE-2021-20016 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 4 public proof-of-concept repositories are indexed.

SQL Injection in Sonicwall Sma100

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 v…

Vulnerability class: SQL Injection

EPSS: 0.798 (99.1th percentile) — read the EPSS interpretation.

Affected products

Sonicwall Sma100 — versions SMA100 build version 10.x

Weakness classification (CWE)

CWE-89 — SQL Injection

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2021-11-03. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2021-11-17.

Required action: Apply updates per vendor instructions.

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2021-20016?: CVE-2021-20016 is a vulnerability in Sonicwall Sma100, classified under SQL Injection. Published 2021-02-03.
Is CVE-2021-20016 known to be exploited?: Yes. CVE-2021-20016 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 4 public proof-of-concept repositories are indexed.