Cumulative Update 15 for Microsoft Exchange Server 2019 was released on February 10, 2025. It includes fixes for nonsecurity issues and all previously released fixes for security and nonsecurity issues. These fixes will also be included in later cumulative updates for Exchange Server 2019.

For example, you try to run the following command to resolve the SID S-1-18-1: The command fails, and you receive an error message that resembles the following: No mapping between account names and security IDs was done.

Important Defender for Endpoint has been removed from the base image for Windows 11, version 24H2 and needs to be manually installed whenever a device goes from Home to Pro. Use the Deployment Image Servicing and Management (DISM) command-line tool to install the Windows Sense Client from an elevated command prompt. See the command below.

You receive a'Specified driver could not load due to a system error 1114 (Pervasive ODBC Client Interface)' error message when you try tocreate, test or connect to a Pervasive ODBC connection. CAUSE The \PVSW\Bin or the install directory for Pervasive.SQL components is not in the system path.

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

MS-NRPC includes an authentication method and a method of establishing a Netlogon secure channel. These updates enforce the specified Netlogon client behavior to use secure RPC with Netlogon secure channel between member computers and Active Directory (AD) domain controllers (DC).

After installing updates released May 10, 2022 on your domain controllers, you might see machine certificate authentication failures on the server or client for services such as Network Policy Server (NPS), Routing and Remote access Service (RRAS), Radius, Extensible Authentication Protocol (EAP), and Protected Extensible Authentication ...

To protect your environment, complete the following steps for certificate-based authentication: Update all servers that run Active Directory Certificate Services and Windows domain controllers that service certificate-based authentication with the May 10, 2022 update (see Compatibility mode).

Resolves a vulnerability in Windows that could allow denial of service if a remote attacker sends a specially crafted session request to the Kerberos server. Firewall best practices and standard default firewall configurations can help protect networks from attacks that originate outside the enterprise perimeter.

Security advisories (ADVs) and CVEs provide information about the risk posed by these vulnerabilities, and how they help you identify the default state of mitigations for Windows client systems. The following table summarizes the requirement of CPU microcode and the default status of the mitigations on Windows clients.