CVE-2021-20016 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2021-11-03
A SQL injection vulnerability in SonicWall SMA100 series appliances allows a remote, unauthenticated attacker to execute SQL queries. This can be exploited to access sensitive information including usernames, passwords, and session-related data.
Yes. CVE-2021-20016 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2021-20016?
Critical severity, with a CVSS score of 9.8, published 3 November 2021.
Which products and versions are affected?
SonicWall SMA 100 Firmware 10.x (specifically 10.0.0.0 up to but excluding 10.2.0.5-d-29sv); SonicWall SMA 100; SonicWall SMA 200; SonicWall SMA 210; and 3 more.
Is there a fix for CVE-2021-20016?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2021-20016 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2021-20016?
Check whether you run SonicWall Sslvpn Sma100. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
SonicWall SMA 100 Firmware 10.x (specifically 10.0.0.0 up to but excluding 10.2.0.5-d-29sv)
SonicWall SMA 100
SonicWall SMA 200
SonicWall SMA 210
SonicWall SMA 400
SonicWall SMA 410
SonicWall SMA 500v
Timeline
2021-02-04: disclosed: NVD Published Date
2021-11-03: kev added: Date added to CISA Known Exploited Vulnerabilities Catalog