CVE-2026-59565
Local and kernel denial-of-service
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
A remotely exploitable buffer overflow bug can cause a local and kernel denial-of-service attack on affected versions of Zscaler Client Connector on Windows.
| CWE | CWE-229 |
| Vendor | zscaler |
| Product | client connector |
| Published | Aug 24, 2026 |
| Last Updated | Aug 24, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Zscaler / Client Connector
0 < Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0.372