SonicWALL SSL-VPN NetExtender Windows Client up to 10.2.322 stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in SonicWALL SSL-VPN NetExtender Windows Client up to 10.2.322 (Firewall Software) and classified as critical. Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-121. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A buffer overflow vulnerability in the SonicWall SSL-VPN NetExtender Windows Client (32 and 64 bit) in 10.2.322 and earlier versions, allows an attacker to potentially execute arbitrary code in the host windows operating system.

The weakness was shared 05/14/2022 as SNWLID-2022-0008. The advisory is shared for download at This vulnerability is handled as CVE-2022-22281 since 12/29/2021. The exploitation is known to be easy. Access to the local network is required for this attack. The requirement for exploitation is a simple authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/18/2022).

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





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍



VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍


Class: Memory corruption
CWE: CWE-121
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒


Threat Intelligenceinfoedit

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


Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒


12/29/2021 CVE reserved
05/14/2022 +135 days Advisory disclosed
05/14/2022 +0 days VulDB entry created
05/18/2022 +4 days VulDB last update



Advisory: SNWLID-2022-0008
Status: Confirmed

CVE: CVE-2022-22281 (🔒)
scip Labs:


Created: 05/14/2022 07:22 AM
Updated: 05/18/2022 07:41 AM
Changes: (1) source_cve_nvd_summary
Complete: 🔍


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