CVE-2021-20022

KEV
Published: Apr 09, 2021 Last Modified: Nov 10, 2025
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,2
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: high
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
HIGH 7,5
Source: [email protected]
Access Vector: network
Access Complexity: low
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: partial

Description

AI Translation Available

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

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,3260
Percentile
1,0th
Updated

EPSS Score Trend (Last 91 Days)

434

Unrestricted Upload of File with Dangerous Type

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability
Potential Impacts:
Execute Unauthorized Code Or Commands
Applicable Platforms
Languages: ASP.NET, Not Language-Specific, PHP
Technologies: Web Server
Likelihood of Exploit: Medium
View CWE Details
Application

Email Security by Sonicwall

Product Information
Vendor Sonicwall
Product Email Security
Version Range Affected
To 10.0.9.6103 (exclusive)
cpe:2.3:a:sonicwall:email_security:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Email Security Appliance 7000 Firmware by Sonicwall

Product Information
Vendor Sonicwall
Product Email Security Appliance 7000 Firmware
Version Range Affected
To 10.0.9.6105 (exclusive)
cpe:2.3:o:sonicwall:email_security_appliance_7000_firmware:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Email Security Appliance 5050 Firmware by Sonicwall

Product Information
Vendor Sonicwall
Product Email Security Appliance 5050 Firmware
Version Range Affected
To 10.0.9.6105 (exclusive)
cpe:2.3:o:sonicwall:email_security_appliance_5050_firmware:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Email Security Appliance 5000 Firmware by Sonicwall

Product Information
Vendor Sonicwall
Product Email Security Appliance 5000 Firmware
Version Range Affected
To 10.0.9.6105 (exclusive)
cpe:2.3:o:sonicwall:email_security_appliance_5000_firmware:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Email Security Appliance 7050 Firmware by Sonicwall

Product Information
Vendor Sonicwall
Product Email Security Appliance 7050 Firmware
Version Range Affected
To 10.0.9.6105 (exclusive)
cpe:2.3:o:sonicwall:email_security_appliance_7050_firmware:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Email Security Virtual Appliance by Sonicwall

Product Information
Vendor Sonicwall
Product Email Security Virtual Appliance
Version Range Affected
To 10.0.9.6105 (exclusive)
cpe:2.3:a:sonicwall:email_security_virtual_appliance:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Email Security Appliance 8300 Firmware by Sonicwall

Product Information
Vendor Sonicwall
Product Email Security Appliance 8300 Firmware
Version Range Affected
To 10.0.9.6105 (exclusive)
cpe:2.3:o:sonicwall:email_security_appliance_8300_firmware:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Email Security Appliance 4300 Firmware by Sonicwall

Product Information
Vendor Sonicwall
Product Email Security Appliance 4300 Firmware
Version Range Affected
To 10.0.9.6105 (exclusive)
cpe:2.3:o:sonicwall:email_security_appliance_4300_firmware:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Email Security Appliance 9000 Firmware by Sonicwall

Product Information
Vendor Sonicwall
Product Email Security Appliance 9000 Firmware
Version Range Affected
To 10.0.9.6105 (exclusive)
cpe:2.3:o:sonicwall:email_security_appliance_9000_firmware:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Email Security Appliance 3300 Firmware by Sonicwall

Product Information
Vendor Sonicwall
Product Email Security Appliance 3300 Firmware
Version Range Affected
To 10.0.9.6105 (exclusive)
cpe:2.3:o:sonicwall:email_security_appliance_3300_firmware:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Hosted Email Security by Sonicwall

Product Information
Vendor Sonicwall
Product Hosted Email Security
Version Range Affected
To 10.0.9.6103 (exclusive)
cpe:2.3:a:sonicwall:hosted_email_security:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalo…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021…
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-…
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0008
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-…
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0008