CVE-2023-28798: Zscaler Client Connector

Critical severity, CVSS 9.8. EPSS: 0.4% chance of exploitation in the next 30 days.

An out-of-bounds write to heap in the pacparser library on Zscaler Client Connector on Mac may lead to arbitrary code execution.

Affected products

• Zscaler Client Connector: before 3.7 (fixed in 3.7)

Published 2024-05-02. Last modified 2026-06-17.