9.1

CVE-2026-59564

Authentication bypass between ZCC and client connector portal

An authentication bypass issue exists in communications between affected versions of the Zscaler Client Connector and the Zscaler Client Connector Portal.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerZscaler
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Produkt Client Connector
Default Statusaffected
Version 0
Version < Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0.372
Status affected
Version 0
Version < MacOS: 4.5.2.312, 4.7.0.292, 4.8.0.191
Status affected
Version 0
Version < iOS: 4.5.1
Status affected
Version 0
Version < Android: 4.2
Status affected
Version 0
Version < ChromeOS: 4.2
Status affected
Version 0
Version < Linux: 3.7.2.64, 4.2.1.64
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.3% 0.22
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cve@zscaler.com 9.1 3.9 5.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE-304 Missing Critical Step in Authentication

The product implements an authentication technique, but it skips a step that weakens the technique.

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