Microsoft Windows Server 2022 Updates

Windows

Here you will find all software, firmware, and hardware updates from Microsoft Windows Server 2022.

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New Release every
18 days
Critical fixes
10
Security-related releases
100%

Risk factor
A total of 11 updates have been released for Windows Server 2022.

Smooth installs %
Minor issues %
Major issues %

Updates

Last updated: Jul 16, 2026

KB5099540 for Windows Server 2022 (OS Build 20348.5386) includes July 2026 security fixes, quality improvements from KB5094128, and servicing stack update KB5120210. It also adds Secure Boot certificate targeting, NTLM auditing improvements, RDP SHA-2 thumbprint support, and AD FS DKM ACL hardening. Reference IDs: CVE-2026-56155, CVE-2025-59287.

Security update Microsoft Windows Server 2022
Jul 14, 2026
OS Build 20348.5386
Security update Microsoft Windows Server 2022
Jul 14, 2026
OS Build 20348.5386

KB5094128 for Windows Server 2022 (OS Build 20348.5256) delivers security fixes, quality improvements, and non-security updates from KB5087545. It also includes a servicing stack update, Secure Boot enhancements, and fixes for File Explorer, fonts, and Windows Security app status. Reference IDs: KB5094147, KB5070884, CVE-2025-59287.

Security update Microsoft Windows Server 2022
Jun 9, 2026
OS Build 20348.5256
Security update Microsoft Windows Server 2022
Jun 9, 2026
OS Build 20348.5256

KB5087545 updates Windows Server 2022 to OS Build 20348.5139 with security fixes, quality improvements, and Secure Boot rollout changes. It also includes a servicing stack update, addresses Remote Desktop dialog rendering, and notes BitLocker and WSUS-related issues.

Security update Microsoft Windows Server 2022
May 12, 2026
OS Build 20348.5139
Security update Microsoft Windows Server 2022
May 12, 2026
OS Build 20348.5139

KB5091575 is an out-of-band cumulative update for Windows Server 2022, OS Build 20348.5024. It fixes a domain controller startup issue after KB5082142 and notes known issues affecting BitLocker recovery prompts, WSUS error details, and Remote Desktop warnings. Reference IDs: KB5070884, KB5087545, CVE-2025-59287.

Security update Microsoft Windows Server 2022
Apr 19, 2026
OS Build 20348.5024
Security update Microsoft Windows Server 2022
Apr 19, 2026
OS Build 20348.5024

KB5082142 for Windows Server 2022 updates OS Build 20348.5020 with security fixes, quality improvements, and new protections for Remote Desktop, Secure Boot, Kerberos, and vulnerable drivers. It also includes SSU KB5082137.

Security update Microsoft Windows Server 2022
Apr 14, 2026
OS Build 20348.5020
Security update Microsoft Windows Server 2022
Apr 14, 2026
OS Build 20348.5020

KB5078766 for Windows Server 2022 updates OS Build 20348.4893 with the latest security fixes and quality improvements from KB5075906 and KB5082314. It also adds Secure Boot certificate targeting data and a warning dialog in Windows System Image Manager.

Security update Microsoft Windows Server 2022
Mar 10, 2026
OS Build 20348.4893
Security update Microsoft Windows Server 2022
Mar 10, 2026
OS Build 20348.4893

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.

Security update Microsoft Windows Server 2022
Feb 28, 2026
OS Build 20348.4776
Security update Microsoft Windows Server 2022
Feb 28, 2026
OS Build 20348.4776

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.

Security update Microsoft Windows Server 2022
Feb 10, 2026
OS Build 20348.4773
Security update Microsoft Windows Server 2022
Feb 10, 2026
OS Build 20348.4773

KB5078136 for Windows Server 2022 (OS Build 20348.4651) is an out-of-band cumulative update that includes prior security fixes plus a file system fix for cloud-based storage issues. It also includes servicing stack update KB5074428 and notes known issues affecting WSUS error details and VSM shutdown or hibernation.

Security update Microsoft Windows Server 2022
Jan 24, 2026
OS Build 20348.4651
Security update Microsoft Windows Server 2022
Jan 24, 2026
OS Build 20348.4651

KB5077800 for Windows Server 2022 (OS Build 20348.4650) is an out-of-band cumulative update. It includes January 13, 2026 security fixes (KB5073457) plus a Remote Desktop sign-in fix and servicing stack update KB5074428.

Security update Microsoft Windows Server 2022
Jan 17, 2026
OS Build 20348.4650
Security update Microsoft Windows Server 2022
Jan 17, 2026
OS Build 20348.4650

KB5073457 updates Windows Server 2022 to OS Build 20348.4648 with the latest security fixes, quality improvements, and non-security updates from the December 2025 preview release. It also includes security hardening for credential autofill and changes to WDS hands-free deployment behavior. Reference IDs: KB5074428, CVE-2025-59287.

Security update Microsoft Windows Server 2022
Jan 13, 2026
OS Build 20348.4648
Security update Microsoft Windows Server 2022
Jan 13, 2026
OS Build 20348.4648