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Users with automatic updates enabled and applied should have already been updated to a fixed version.

What Customers Should Do

The issue has been addressed in the following versions of Citrix Workspace app for Windows:

• Citrix Workspace App 2008 or later
• Citrix Workspace App 1912 LTSR CU1 Hotfix 1 (19.12.1001) and later cumulative updates

Note that these versions have been updated since the original publication of this bulletin.

Citrix strongly recommends that customers check if the version they are running has been automatically updated and, if necessary, upgrade to a fixed version as soon as possible.

Citrix Workspace For Windows 10

The latest version of Citrix Workspace app for Windows is available from the following Citrix website location:

The latest LTSR version of Citrix Workspace app for Windows is available from the following Citrix website location:

Acknowledgements

Citrix would like to thank Ceri Coburn at Pen Test Partners for working with us to protect Citrix customers during both the initial disclosure of this issue and subsequent variants.

What Citrix Is Doing

Citrix is notifying customers and channel partners about this potential security issue. This article is also available from the Citrix Knowledge Center at http://support.citrix.com/.

Obtaining Support on This Issue

If you require technical assistance with this issue, please contact Citrix Technical Support. Contact details for Citrix Technical Support are available at https://www.citrix.com/support/open-a-support-case.html.

Reporting Security Vulnerabilities

Citrix welcomes input regarding the security of its products and considers any and all potential vulnerabilities seriously. For details on our vulnerability response process and guidance on how to report security-related issues to Citrix, please visit the Citrix Trust Center at https://www.citrix.com/about/trust-center/vulnerability-process.html.

Citrix Workspace For Windows

Changelog

Citrix Workspace Install