CVE-2021-20021

KEV
Published: Apr 09, 2021 Last Modified: Nov 10, 2025
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
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

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.

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
0,9015
Percentile
1,0th
Updated

EPSS Score Trend (Last 90 Days)

269

Improper Privilege Management

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Gain Privileges Or Assume Identity
Applicable Platforms
All platforms may be affected
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-2021-0007
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-…
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0007