Microsoft Windows Server 2022 Updates

Software Utilities Windows

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

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New Release every

19 days

Critical fixes

10

Security-related releases

100%

Risk factor
A total of 16 updates have been released for Windows Server 2022.

Smooth installs %

Minor issues %

Major issues %

Updates

Latest vendor release: Oct 26, 2026

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KB5134140 is a non-security, out-of-band cumulative update for Windows Server 2022 that adds updated trusted root certificates for devices unable to receive automatic CTL updates.

Security update Microsoft Windows Server 2022

Oct 26, 2026

OS Build 20348.5773; SSU 20348.5739

Security update Microsoft Windows Server 2022

Oct 26, 2026

OS Build 20348.5773; SSU 20348.5739

KB5126655 updates Windows Server 2022 to OS Build 20348.5761 with security fixes, NTLM auditing, ReFS security controls, time-zone changes, and fixes from recent preview and out-of-band updates.

Security update Microsoft Windows Server 2022

Oct 13, 2026

OS Build 20348.5761

Security update Microsoft Windows Server 2022

Oct 13, 2026

OS Build 20348.5761

KB5129237 is an out-of-band cumulative update for Windows Server 2022 (OS Build 20348.5631). It fixes Remote Desktop Services instability after KB5122882 and addresses USB Audio Class 1.0 multichannel audio failures. Reference IDs: KB5122881, CVE-2025-59287.

Security update Microsoft Windows Server 2022

Sep 14, 2026

OS Build 20348.5631

Security update Microsoft Windows Server 2022

Sep 14, 2026

OS Build 20348.5631

KB5122882 for Windows Server 2022 (OS Build 20348.5622) includes the latest security fixes plus non-security improvements from KB5120242. It also updates the servicing stack with KB5122881. Reference IDs: KB5070884, CVE-2025-59287.

Security update Microsoft Windows Server 2022

Sep 8, 2026

OS Build 20348.5622

Security update Microsoft Windows Server 2022

Sep 8, 2026

OS Build 20348.5622

KB5120242 for Windows Server 2022 (OS Build 20348.5499) includes the latest security fixes, non-security improvements from KB5099540, and a servicing stack update KB5120241. It also expands Secure Boot certificate deployment coverage. Reference IDs: KB5070884, CVE-2025-59287.

Security update Microsoft Windows Server 2022

Aug 11, 2026

OS Build 20348.5499

Security update Microsoft Windows Server 2022

Aug 11, 2026

OS Build 20348.5499

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

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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