CVE-2021-20021

State: Published
Severity: 9.8 Critical
Published: Apr 9, 2021
Updated: Aug 12, 2026
Reserved: Dec 17, 2020

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.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-269 Improper Privilege Management

Affected Products

Product	Versions
Email SecuritySonicWall	10.0.9 and earlierAffected

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20021government-resource

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