KB5055561: Overview with user sentiment and feedback

Overview

KB5055561 is a Monthly Rollup security update for Windows Server 2008 R2 Premium Assurance customers released on April 8, 2025. This update comes as Windows Server 2008 R2 approaches its end of support in January 2026. The update includes important security improvements and vulnerability fixes, particularly focusing on OS Security and Kerberos Authentication enhancements.

General Purpose

The primary purpose of this update is to address security vulnerabilities and improve system protection. It implements new security measures for the OS, including changes to the inetpub folder structure for enhanced protection. The update also adds important Kerberos Authentication protections to address vulnerabilities related to certificate authorities in the Windows root store. These changes are part of Microsoft's ongoing effort to maintain security for Windows Server 2008 R2 systems still under Premium Assurance support.

General Sentiment

The sentiment around this update appears generally positive, focusing on necessary security improvements. While the update requires the latest Servicing Stack Update (SSU) KB5056456 as a prerequisite, this is a standard requirement for proper installation. The update introduces some changes to system behavior, particularly regarding Event ID 45 logging on domain controllers, but these changes are documented and part of the intended security improvements. Microsoft emphasizes that these changes require no specific action from IT administrators or end users.

Known Issues

• No specific known issues have been identified with this update at the time of release
• The update requires installation of the latest Servicing Stack Update (KB5056456) before it can be installed
• Event ID 45 events may be logged on domain controllers due to Kerberos Authentication changes

Disclaimer: We take measures to ensure that AI-generated content is of the highest possible quality, but we cannot guarantee its accuracy and recommend that users do their own independent research. Generated on 2025-05-24 02:22 AM

Back to Knowledge Base Catalog