CVE-2026-59569 PUBLISHED

Android ZCC VPN API method privilege escalation

Assigner: Zscaler
Reserved: 06.07.2026 Published: 14.09.2026 Updated: 14.09.2026

An improper input validation vulnerability in Zscaler Client Connector on Android and ChromeOS allows an attacker to potentially bypass Zscaler controls.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L
CVSS Score: 8.1

Attack Vector	Local	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	High	Integrity Impact	High
User Interaction	None	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	Zscaler
Product	Client Connector
Versions	Default: affected affected from 0 to Android: 4.2.0.152 (excl.) affected from 0 to ChromeOS: 4.2.0.152 (excl.)

References

https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2026

Problem Types

CWE-20 Improper input validation CWE

Impacts

CAPEC-233 Privilege Escalation