CVE-2023-28802 MEDIUM

CVE-2023-28802: Disable Zscaler using machine tunnel restart

Vendor Zscaler
Product Client Connector
Weakness CWE-354
Published November 21, 2023
Last update January 6, 2026
View on NVD All CVEs

CVSS base score

4.9/10
Attack vector Physical
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity Low

CVSS vector

CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

What the vulnerability does

01Description

An Improper Validation of Integrity Check Value in Zscaler Client Connector on Windows allows an authenticated user to disable ZIA/ZPA by interrupting the service restart from Zscaler Diagnostics. This issue affects Client Connector: before 4.2.0.149.

Key dates

02Disclosure timeline

November 21, 2023 CVE published
January 6, 2026 Record updated