SonicWALL Email Security 10.0.9.x unrestricted upload

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in SonicWALL Email Security 10.0.9.x. It has been classified as critical. This impacts an unknown function. The manipulation leads to unrestricted upload. This vulnerability is traded as CVE-2021-20022. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability was found in SonicWALL Email Security 10.0.9.x (Anti-Malware Software). It has been rated as critical. This issue affects an unknown code block. The manipulation with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. Impacted is confidentiality, integrity, and availability.

The weakness was shared 04/10/2021 as SNWLID-2021-0008. The advisory is shared at psirt.global.sonicwall.com. The identification of this vulnerability is CVE-2021-20022. Technical details are unknown but an exploit is available. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

It is declared as attacked. The CISA Known Exploited Vulnerabilities Catalog lists this issue since 11/03/2021 with a due date of 11/17/2021:

Apply updates per vendor instructions.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Zero-Day.cz (621). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.2
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Zero-Day.cz: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/17/2020 🔍
04/10/2021 +113 days 🔍
04/10/2021 +0 days 🔍
11/10/2025 +1675 days 🔍

Sourcesinfo

Vendor: sonicwall.com

Advisory: SNWLID-2021-0008
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-20022 (🔍)
GCVE (CVE): GCVE-0-2021-20022
GCVE (VulDB): GCVE-100-172709
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/10/2021 09:45
Updated: 11/10/2025 21:02
Changes: 04/10/2021 09:45 (37), 04/15/2021 13:34 (3), 04/21/2024 08:18 (26), 06/29/2024 09:15 (2), 09/11/2024 23:15 (1), 02/06/2025 21:53 (19), 11/10/2025 21:02 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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