CVE-2021-20021

CRITICAL9.8

CISA KEV

Published 2021-04-09 · Updated 2026-08-12 · Source PSIRT@sonicwall.com

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.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-269CWE-269

CISA Known-Exploited Vulnerability

Product: SonicWall — SonicWall Email Security

Name: SonicWall Email Security Improper Privilege Management Vulnerability

Date added: 2021-11-03 · Due: 2021-11-17

USED IN RANSOMWARE

Required action: Apply updates per vendor instructions.

References

View on NVD

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