VPN and endpoint clients

CVE-2022-22281: Buffer overflow in SonicWall NetExtender Windows (32 and 64 bit) Client

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.

Published

ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityUnknown
EPSS0.51%Chance of exploitation in 30 days
Public exploitNot tracked
FixSee advisory

Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.

Affected and fixed versions

Product / branchFixed in
SonicWall NetExtender Windows (32 and 64 bit) Client 10.2See the advisory

Always confirm against the vendor advisory, which lists every fixed hotfix.

What it is

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.

Sources

KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.

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