CVE-2021-20023

MEDIUM KEV RANSOMWARE

Sonicwall Email Security < 10.0.9.6173 - Path Traversal

Title source: rule

Description

SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to read an arbitrary file on the remote host.

References (2)

[Vendor Advisory] https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0010

[US Government Resource] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20023

Scores

CVSS v3 4.9

EPSS 0.4268

EPSS Percentile 97.5%

Attack Vector NETWORK

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

Details

CISA KEV 2021-11-03

VulnCheck KEV 2021-04-20

InTheWild.io 2021-04-20

ENISA EUVD EUVD-2021-7486

Ransomware Use Confirmed

CWE

CWE-22

Status published

Products (11)

sonicwall/email_security < 10.0.9.6173

sonicwall/email_security_appliance_3300_firmware < 10.0.9.6177

sonicwall/email_security_appliance_4300_firmware < 10.0.9.6177

sonicwall/email_security_appliance_5000_firmware < 10.0.9.6177

sonicwall/email_security_appliance_5050_firmware < 10.0.9.6177

sonicwall/email_security_appliance_7000_firmware < 10.0.9.6177

sonicwall/email_security_appliance_7050_firmware < 10.0.9.6177

sonicwall/email_security_appliance_8300_firmware < 10.0.9.6177

sonicwall/email_security_appliance_9000_firmware < 10.0.9.6177

sonicwall/email_security_virtual_appliance < 10.0.9.6177

... and 1 more

Published Apr 20, 2021

KEV Added Nov 03, 2021

Tracked Since Feb 18, 2026