Client Connector
CVE-2021-26735: Untrusted Search Path While Executing REG DELETE by Uninstaller
The Zscaler Client Connector Installer and Unsintallers for Windows prior to 3.6 had an unquoted search path vulnerability.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityMEDIUMCVSS 3.1 6.7
EPSS0.13%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 | 3.6 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
The Zscaler Client Connector Installer and Unsintallers for Windows prior to 3.6 had an unquoted search path vulnerability. A local adversary may be able to execute code with SYSTEM privileges.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.