A vulnerability, which was classified as problematic, was found in Microsoft Windows Server 2019/Server 2004/Server 20H2/Server 2022. This affects an unknown part of the component AD FS. The manipulation leads to information disclosure.

This vulnerability is uniquely identified as CVE-2021-40456. It is possible to initiate the attack remotely. There is no exploit available.

It is recommended to apply a patch to fix this issue.