Client Connector
CVE-2023-41973: Lack of input santization on Zscaler Client Connector enables arbitrary code execution
ZSATray passes the previousInstallerName as a config parameter to TrayManager, and TrayManager constructs the path and appends previousInstallerName to get the full path of the exe.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 3.1 7.3
EPSS0.31%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable
Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.
Affected and fixed versions
| Product / branch | Fixed in |
|---|---|
| Client Connector (Windows) 0 | 4.3.0.121 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
ZSATray passes the previousInstallerName as a config parameter to TrayManager, and TrayManager constructs the path and appends previousInstallerName to get the full path of the exe. Fixed Version: Win ZApp 4.3.0.121 and later.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.