CWE
269
Advisory Published
Updated

CVE-2021-26734: Junction Delete leading to elevation of privilege

First published: Mon Oct 23 2023(Updated: )

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.

Credit: cve@zscaler.com

Affected SoftwareAffected VersionHow to fix
Zscaler Client Connector for Windows<3.4.0.124

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Frequently Asked Questions

  • What is CVE-2021-26734?

    CVE-2021-26734 is a vulnerability in Zscaler Client Connector Installer on Windows before version 3.4.0.124 that allows a local adversary to delete folders in an elevated context.

  • How does CVE-2021-26734 impact Zscaler Client Connector on Windows?

    CVE-2021-26734 can lead to elevation of privilege, allowing a local adversary to delete folders in an elevated context.

  • What is the severity level of CVE-2021-26734?

    CVE-2021-26734 has a severity level of medium, with a severity value of 5.5.

  • How can I fix CVE-2021-26734?

    To fix CVE-2021-26734, upgrade Zscaler Client Connector to version 3.4.0.124 or later.

  • Where can I find more information about CVE-2021-26734?

    You can find more information about CVE-2021-26734 in the Zscaler Client Connector App Release Summary for 2021.

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