CVE-2023-28806: Zscaler Client Connector

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

An Improper Validation of signature in Zscaler Client Connector on Windows allows an authenticated user to disable anti-tampering. This issue affects Client Connector on Windows <4.2.0.190.

Affected products

• Zscaler Client Connector: before 4.2.0.190 (fixed in 4.2.0.190)

Published 2024-08-06. Last modified 2026-06-17.