CVE-2021-20021

Known Exploited

Description

A vulnerability in the SonicWall Email Security version 10.0.9.x allows an attacker to create an administrative account by sending a crafted HTTP request to the remote host.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 84.95% Top 5%
KEV Since 
Vendor Advisory sonicwall.com
Affected: SonicWall Email Security
Published at:
Updated at:

References

Link Tags
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-20021?
CVE-2021-20021 has been scored as a critical severity vulnerability.
How to fix CVE-2021-20021?
To fix CVE-2021-20021, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20021 being actively exploited in the wild?
It is confirmed that CVE-2021-20021 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~85% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20021?
CVE-2021-20021 affects SonicWall Email Security.
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