CVE-2026-59564 (GCVE-0-2026-59564)
Vulnerability from cvelistv5 – Published: 2026-08-24 13:39 – Updated: 2026-08-25 03:56
VLAI
EPSS
VEX
Title
Authentication bypass between ZCC and client connector portal
Summary
An authentication bypass issue exists in communications between affected versions of the Zscaler Client Connector and the Zscaler Client Connector Portal.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-24 00:00 UTC
CWE
- CWE-304 - Missing critical step in authentication
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Zscaler | Client Connector |
Affected:
0 , < Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0.372
(custom)
Affected: 0 , < MacOS: 4.5.2.312, 4.7.0.292, 4.8.0.191 (custom) Affected: 0 , < iOS: 4.5.1 (custom) Affected: 0 , < Android: 4.2 (custom) Affected: 0 , < ChromeOS: 4.2 (custom) Affected: 0 , < Linux: 3.7.2.64, 4.2.1.64 (custom) |
guessed |
Date Public
2026-08-21 09:48
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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