CVE-2026-59564criticalCWE-304

CVE-2026-59564: critical vulnerability in Zscaler Client Connector

Authentication bypass between ZCC and client connector portal

Published · Updated

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28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.1epss 0.5%
An authentication bypass issue exists in communications between affected versions of the Zscaler Client Connector and the Zscaler Client Connector Portal.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected products
Zscaler · Client Connector
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