Microsoft Windows Server 2022 Update Version OS Build 20348.4776

KB5082314 for Windows Server 2022 (OS Build 20348.4776) is an out-of-band cumulative update. It includes February 10, 2026 security fixes and addresses a Windows Hello for Business certificate renewal issue in certain ADFS-based deployments. Reference IDs: KB5075906.

• Includes security fixes and improvements from the February 10, 2026 security update (KB5075906).
• Security guidance notes that Secure Boot certificates used by most Windows devices are set to expire starting in June 2026.

• Fixes a certificate renewal issue affecting Windows Hello for Business in certain Active Directory Federation Services (ADFS)-based deployments on Windows Server 2022.

• Apply this update only to affected ADFS servers using ADFS with Windows Hello for Business.
• The fix is protected by Known Issue Rollback (KIR) and is disabled by default; installing the update alone does not enable it.
• The KIR enablement Group Policy is provided only by Microsoft Support for confirmed affected customers.
• If earlier updates are installed, only the new updates in this package are downloaded and installed.
• Review Microsoft guidance for Secure Boot certificate updates to avoid boot disruption before June 2026.

Product Information

Vendor: Microsoft

Product: Windows Server 2022

Product type: Software

Application category: Utilities

Platform: Windows

Version: OS Build 20348.4776

Vendor information published: Feb 28, 2026

Original release notes: View on vendor site

Published on updatealert.io: Jun 3, 2026

Description: Server operating system for on-premises and hybrid workloads.