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Microsoft Windows Server 2022 Update Version OS Build 20348.4773

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Update Summary

KB5075906 for Windows Server 2022 (OS Build 20348.4773) includes security fixes, quality improvements, and new DNS resource record shuffling support. It also rolls in updates from KB5073457, KB5077800, and KB5078136.

Update Details

Security

  • Includes the latest security fixes for Windows Server 2022.
  • Addresses an OS security issue where some VSM-enabled PCs could restart instead of shutting down or hibernating after the January 13, 2026 security update.
  • WSUS synchronization error details are temporarily removed to address the Remote Code Execution vulnerability CVE-2025-59287.

Bug Fixes

  • Fixes File Explorer folder renaming issues when desktop.ini uses LocalizedResourceName, so custom folder names display correctly.
  • Fixes a graphics issue where some GPU configurations could trigger dxgmms2.sys and KERNEL_SECURITY_CHECK_FAILURE.
  • Fixes an OS issue affecting shutdown and hibernation on some Virtual Secure Mode systems.

New Features

  • Adds support for random shuffling of DNS Server resource records in responses to reduce overload on the first returned record.

Known Issues

  • WSUS does not display synchronization error details in its error reporting after KB5070884 or later updates.

Hints

  • Enable DNS record shuffling by creating DWORD RandomShuffle=1 under Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DNS\Parameters.
  • Set RandomShuffle=0 or remove the registry value to disable the feature.
  • This cumulative update includes fixes and improvements from the previous optional preview release and installs only new content if earlier updates are already present.
  • Windows Secure Boot certificates used by most devices are set to expire starting in June 2026; review Microsoft guidance in advance.

Product Information

Vendor: Microsoft

Product: Windows Server 2022

Product type: Software

Application category: Utilities

Platform: Windows

Version: OS Build 20348.4773

Vendor release date: Feb 10, 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.

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