What’s Vulnerable › Vulnerabilities
CVE-2026-59565: Local and kernel denial-of-service
- Severity: high (CVSS 8.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-24 · updated 2026-10-12
- Weakness: CWE-229
Description
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.
Affected products
- Zscaler Client Connector: before Windows: 4.6.0.457, 4.7.0.317, 4.8.0.232, 4.9.0.372 — fixed in 4.7.0.317, 4.8.0.232, 4.9.0.372, Windows: 4.6.0.457
How to fix
Upgrade to a fixed version: Zscaler Client Connector 4.7.0.317, 4.8.0.232, 4.9.0.372, Windows: 4.6.0.457. Check the vendor advisory for mitigations.
References
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