CVE-2026-59565CWE-229

CVE-2026-59565

High · published August 24, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
18.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00270 · 18.9th percentile
Weakness
CWE-229 · Improper Handling of Values
Published
2026-08-24T18:16Z
References (1)
https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2026 · [email protected]
EPSS history
Timeline
  • 26 AUG 08:16Z
    EPSS moved — → 0%
    epss
  • 24 AUG 13:40Z
    Local and kernel denial-of-service
    cvelistv5