Vulnerability Report

CVE-2021-20022

RCE CISA KEV Active

Title: Sonicwall Email Security Appliance 5000 RCE

RCE

Proof Of Concept

No public PoC currently indexed for CVE-2021-20022.

CWE Category CWE-434
Published Date Apr 09, 2021
Modified Date Nov 10, 2025
Exploit Status Not Found
Score 7.2 CVSS v3.1
Exploit Probability (EPSS)
16.51%

Vulnerability Summary

CVE-2021-20022: 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.

Impacted Vendors

W
websense 1
C
cisco 1
S
sonicwall 11

Reference Links

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0008 https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0008 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20022
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.2
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity HIGH
7.2
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.5
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-20022 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.