CVE-2026-59566

High

Description

A locally exploitable buffer overflow bug can cause a local denial-of-service attack on affected versions of Zscaler Client Connector on Android and ChromeOS.

SeverityHigh
CVSS8.4
Exploit probability—
ProductClient Connector
PublishedAug 24, 2026
First seenAug 24, 2026
Weakness typeCWE-229CWE-229

How to fix

Update
  • Zscaler Client ConnectorAndroid: 4.2, ChromeOS: 4.2 or later

Affected products

ProductAffected versionsFixed in
Zscaler Client Connectorv < Android: 4.2, v < ChromeOS: 4.2Android: 4.2, ChromeOS: 4.2

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.