CVE-2026-59564

Summary

An authentication bypass issue exists in communications between affected versions of the Zscaler Client Connector and the Zscaler Client Connector Portal.

Affected Software

VendorProductVersion RangeStatus
ZscalerClient Connector0 < Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0.372affected
ZscalerClient Connector0 < MacOS: 4.5.2.312, 4.7.0.292, 4.8.0.191affected
ZscalerClient Connector0 < iOS: 4.5.1affected
ZscalerClient Connector0 < Android: 4.2affected
ZscalerClient Connector0 < ChromeOS: 4.2affected
ZscalerClient Connector0 < Linux: 3.7.2.64, 4.2.1.64affected

Weaknesses

  • CWE-304: CWE-304 Missing critical step in authentication

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: total

References