High severity8.1NVD Advisory· Published Sep 14, 2026· Updated Sep 14, 2026

CVE-2026-25687

Description

A race condition in the ZPA tunnel handler of affected versions of Zscaler Client Connector (ZCC) allows a heap corruption, resulting in a denial of service (client crash) and potentially arbitrary code execution in the context of the ZCC process.

Affected products

Zscaler/Zscaler Client Connector Installerllm-fuzzy

Patches

Vulnerability mechanics

References

help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2026nvd

News mentions

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