Client Connector
CVE-2021-26738: Privilege Escalation for ZCC macOS via PATH Variable
Zscaler Client Connector for macOS prior to 3.7 had an unquoted search path vulnerability via the PATH variable.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 3.1 7.8
EPSS0.23%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 0 | 3.7 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
Zscaler Client Connector for macOS prior to 3.7 had an unquoted search path vulnerability via the PATH variable. A local adversary may be able to execute code with root privileges.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.