Client Connector
CVE-2026-59566: Local denial-of-service
A locally exploitable buffer overflow bug can cause a local denial-of-service attack on affected versions of Zscaler Client Connector on Android and ChromeOS.
Published
ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 3.1 8.4
EPSS0.18%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 or later |
| Client Connector (Android, ChromeOS) 0 | ChromeOS: 4.2 or later |
Always confirm against the vendor advisory, which lists every fixed hotfix.
What it is
A locally exploitable buffer overflow bug can cause a local denial-of-service attack on affected versions of Zscaler Client Connector on Android and ChromeOS.
Sources
KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.