What is CVE-2026-59565?

CVE-2026-59565 is a high-severity vulnerability in Zscaler Client Connector, classified under CWE-229. CVSS score: 8.8/10. Published 2026-08-24.

How severe is CVE-2026-59565?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Zscaler Client Connector

CVE-2026-59565

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.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Zscaler Client Connector

Weakness classification (CWE)

CWE-229

References

cve@zscaler.com

Frequently asked questions

What is CVE-2026-59565?: CVE-2026-59565 is a high-severity vulnerability in Zscaler Client Connector, classified under CWE-229. CVSS score: 8.8/10. Published 2026-08-24.
How severe is CVE-2026-59565?: High severity. CVSS v3 base score is 8.8 out of 10.