vulnerability

Zscaler Client Connector: CVE-2021-26734: Improper Privilege Management

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Severity

CVSS

(AV:L/AC:H/Au:S/C:N/I:N/A:C)

Published

Oct 23, 2023

Added

Jun 5, 2025

Modified

Jun 17, 2026

Description

Zscaler Client Connector Installer on Windows before version 3.4.0.124 improperly handled directory junctions during uninstallation. A local adversary may be able to delete folders in an elevated context.

Solution

zscaler-client-connector-update-latest

References

CVE-2021-26734
https://attackerkb.com/topics/CVE-2021-26734
CWE-269
EUVD-EUVD-2021-13521
https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-13521

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