CVE-2023-28802 - CVE House
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Status published Medium CVE-2023-28802

Disable Zscaler using machine tunnel restart

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Simon Cecchini (LRQA Nettitude)

References

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Affected Vendor

Affected Software

Client Connector
Vulnerable Versions:
0

Timeline

Official Publish: November 21st, 2023
Last Modified: January 6th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Weaknesses (CWE)

CWE-354

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.