Client Connector
CVE-2026-59570: Android ZCC denial of service
On affected versions of Zscaler client connector, a pre-installed peer app can tear down the Zscaler tunnel, force user logout, and toggle packet capture.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 3.1 7.5
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 (Android, ChromeOS) 0 | Android: 4.2.0.152 or later |
| Client Connector (Android, ChromeOS) 0 | ChromeOS: 4.2.0.152 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
On affected versions of Zscaler client connector, a pre-installed peer app can tear down the Zscaler tunnel, force user logout, and toggle packet capture.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.