KB5051989 is the cumulative update for February 2025 for Windows 11. The update is applicable for Windows 11 22H2 and 23H2 editions for x64 and ARM64 architectures.
KB5051989 caters to resolving security vulnerabilities in Windows 11 operating system. 31 security vulnerabilities are reported in Windows 11 22H2 and 23H2 editions in February 2025. The security updates also address a CRITICAL security vulnerability CVE-2025-21376 with CVSS score 8.1 in Windows 11 22H2 and 23H2.
- Windows 11 22H2 build for KB5051989 is OS Build 22621.4890
- Windows 11 23H2 build for KB5051989 is OS Build 22631.4890
Update History
KB5051989 supersedes January 2025 cumulative update KB5050021. So, all changes of KB5050021 automatically become part of the KB5051989 update. KB5051989 also includes changes implemented in the 29 January 2025 preview update KB5050092.
Servicing Stack Updates
KB5053488 is the Servicing Stack Update for KB5051989. The Servicing Stack Update is automatically installed during the update process through the Windows Update program. For manual deployments, separate installation is not needed because KB5053488 is part of the cumulative update KB5051989.
- Windows 11 22H2 Servicing Stack Update KB5053488 build is 22621.4890
- Windows 11 23H2 Servicing Stack Update KB5053488 build is 22631.4890
Servicing Stack is a group of files that are used to manage Windows updates effectively and efficiently.
Installation
Installing KB5051989 is direct through the Windows Update program. As a system administrator, Windows 11 updates can be authorized through the WSUS program as well.
The manual installation is a single step installation through the Windows Catalog. Appropriate files for the 22H2 and 23H2 can be downloaded from the following page:
Unresolved issues
KB5051989 lists 2 unresolved issues that include:1. Following the installation of the October 2024 security update, some customers report that the OpenSSH (Open Secure Shell) service fails to start, preventing SSH connections. The workaround involves updating the ACLs on the affected directories. You can refer the detailed instructions in Microsoft release notes.
Devices that have certain Citrix components installed might be unable to complete installation of the January 2025 Windows security update. This issue was observed on devices with Citrix Session Recording Agent (SRA) version 2411. The 2411 version of this application was released in December 2024. The workaround instructions are published on Citrix website.