March 2, 2026—KB5082314 (OS Build 20348.4776) Out-of-band
Applies To
Release Date:
28/2/2026
Version:
OS Build 20348.4776
This out-of-band update for Windows Server 2022 (KB5082314) is cumulative. It includes updates from previous security updates, along with an additional fix. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates.
To view the latest updates about this release, visit the Windows release health dashboard or the update history page for Windows Server 2022.Â
Announcements and messages
This section provides key notifications related to this release, including announcements, change logs, and end-of-support notices.
Windows Secure Boot certificate expirationÂ
Important: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. This might affect the ability of certain personal and business devices to boot securely if not updated in time. To avoid disruption, we recommend reviewing the guidance and taking action to update certificates in advance. Â
For details and preparation steps for Windows devices, see Windows Secure Boot certificate expiration and CA updates.
For details and preparation steps for Windows servers, see the following resources:
Improvements
This out-of-band (OOB) update includes quality improvements and a fix. This update is cumulative and includes security fixes and improvements from the February 10, 2026, security update (KB5075906).
Additionally, this out-of-band update addresses an issue affecting certificate renewal for Windows Hello for Business in certain Active Directory Federation Services (ADFS)–based deployments on Windows Server 2022.
ADFS is a Windows Server role that provides federated authentication services and, in some on‑premises Windows Hello for Business certificate‑based environments, is responsible for validating and renewing user authentication certificates.
This issue is expected to affect only a small number of organizations using this specific deployment model and specific configurations on Windows Server 2022 systems and does not affect individual PCs or consumer devices.
Important: You should only apply this update to affected ADFS servers if they are using ADFS in combination with Windows Hello for Business. This fix is protected by Known Issue Rollback (KIR) and is disabled by default. Installing this update alone does not enable the fix. The KIR enablement Group Policy is provided only by Microsoft Support and is intended for customers who are confirmed to be affected by this issue.
If you observe this issue on devices running Windows Server 2022 in your IT environment, please contact Microsoft Support for business to resolve this issue.
If you installed earlier updates, your device downloads and installs only the new updates contained in this package.
Windows Server 2022 servicing stack update (KB5075905) -20348.4763
Microsoft now combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). SSUs improves the reliability of the update process and includes fixes to the servicing stack, the component that installs Windows updates. To learn more about SSUs, see Servicing stack updates.
Known issues in this update
After installing KB5070884 or later updates, Windows Server Update Services (WSUS) does not display synchronization error details within its error reporting. This functionality is temporarily removed to address the Remote Code Execution Vulnerability, CVE-2025-59287.Â
How to get this update
Install this update
To install this update, use one of the following Windows and Microsoft release channels.
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This update is only available from the Microsoft Update Catalog. |
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This update is only available from the Microsoft Update Catalog. |
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To get the standalone package for this update, go to the Microsoft Update Catalog. To download updates from the Update Catalog, see Steps to download updates from the Windows Update Catalog. |
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If you want to remove the LCU
To remove the LCU after installing the combined SSU and LCU package, use the DISM/Remove-Package command line option with the LCU package name as the argument. You can find the package name by using this command: DISM /online /get-packages.
Running Windows Update Standalone Installer (wusa.exe) with the /uninstall switch on the combined package will not work because the combined package contains the SSU. You cannot remove the SSU from the system after installation.
File Information
For a list of the files provided in this update, download the file information for out-of-band update 5082314.Â
For a list of the files provided in the servicing stack update, download the file information for the SSU (KB5075905) - version 20348.4763.Â
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