To help reduce app compatibility issues, we have automatically raised the authentication level for all non-anonymous activation requests from Windows-based DCOM clients to RPC_C_AUTHN_LEVEL_PKT_INTEGRITY at a minimum.

This update resolves vulnerabilities in Microsoft Exchange Server. To learn more about these vulnerabilities, see the following Common Vulnerabilities and Exposures (CVE): Microsoft Exchange Server Elevation of Privilege Vulnerability CVE-2024-21410.

The following file is available for download from the Microsoft Download Center: Download the package now. For more information about how to download Microsoft support files, click the following article number to go to the article in the Microsoft Knowledge Base:

Resolution. Install the July 2021 Out-of-band or later updates. Check if the following conditions are true: Registry Settings: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Printers\PointAndPrint. NoWarningNoElevationOnInstall = 0 (DWORD) or not defined (default setting) UpdatePromptSettings = 0 (DWORD) or not defined (default setting)

Solution 1: Check the Xbox status. Check the Xbox status page. If you see any services with alerts, expand the service, scroll down to Notifications, and sign in to receive a message when the service is up and running again. Xbox status page. Select the service that’s currently experiencing an issue to expand for more info.

Resolves a vulnerability in Windows Explorer that could allow remote code execution if a user visited a specially crafted webpage.

The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component.

CVE-2022-34691, CVE-2022-26931 and CVE-2022-26923 address an elevation of privilege vulnerability that can occur when the Kerberos Key Distribution Center (KDC) is servicing a certificate-based authentication request.

Symptoms. Consider the following scenario: You plan to run an unattended setup to upgrade to Microsoft Exchange Server from PowerShell by using Setup.exe. The setup media is located on D drive. The unattended installation is started from PowerShell as "d:\setup.exe" instead of "d:\.\setup.exe."

Cause. This issue occurs because the access check fails between the Client Access server and the Microsoft Office Store: ( https://o15.officeredir.microsoft.com/r/rlidMktplcWSConfig15 ). Resolution. If the server that's running Exchange Server has an internet connection, check the proxy server to see whether the following URL is enabled for access: