CVE-2021-20023

MEDIUMCISA KEV

4.9

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.

CVE Details

CVSS v3.1 Score4.9

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredHIGH

User InteractionNONE

Published4/20/2021

Last Modified11/12/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorSonicWall

ProductSonicWall Email Security

Vulnerability NameSonicWall Email Security Path Traversal Vulnerability

KEV Date Added2021-11-03

Remediation Due Date2021-11-17

Ransomware UseKnown

Affected Products

microsoft:windowssonicwall:email_securitysonicwall:email_security_appliance_3300sonicwall:email_security_appliance_3300_firmwaresonicwall:email_security_appliance_4300sonicwall:email_security_appliance_4300_firmwaresonicwall:email_security_appliance_5000sonicwall:email_security_appliance_5000_firmwaresonicwall:email_security_appliance_5050sonicwall:email_security_appliance_5050_firmwaresonicwall:email_security_appliance_7000sonicwall:email_security_appliance_7000_firmwaresonicwall:email_security_appliance_7050sonicwall:email_security_appliance_7050_firmwaresonicwall:email_security_appliance_8300sonicwall:email_security_appliance_8300_firmwaresonicwall:email_security_appliance_9000sonicwall:email_security_appliance_9000_firmwaresonicwall:email_security_virtual_appliancesonicwall:hosted_email_security

Weaknesses (CWE)

CWE-22CWE-22

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0010(PSIRT@sonicwall.com)

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0010(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20023(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.