Microsoft has announced the security updates for April 2022.

April 2022 Security Updates

Updates this Month

This release consists of security updates for the following products, features and roles.

• .NET Framework
• Active Directory Domain Services
• Azure SDK
• Azure Site Recovery
• LDAP - Lightweight Directory Access Protocol
• Microsoft Bluetooth Driver
• Microsoft Dynamics
• Microsoft Edge (Chromium-based)
• Microsoft Graphics Component
• Microsoft Local Security Authority Server (lsasrv)
• Microsoft Office Excel
• Microsoft Office SharePoint
• Microsoft Windows ALPC
• Microsoft Windows Codecs Library
• Microsoft Windows Media Foundation
• Power BI
• Role: DNS Server
• Role: Windows Hyper-V
• Skype for Business
• Visual Studio
• Visual Studio Code
• Windows Ancillary Function Driver for WinSock
• Windows App Store
• Windows AppX Package Manager
• Windows Cluster Client Failover
• Windows Cluster Shared Volume (CSV)
• Windows Common Log File System Driver
• Windows Defender
• Windows DWM Core Library
• Windows Endpoint Configuration Manager
• Windows Fax Compose Form
• Windows Feedback Hub
• Windows File Explorer
• Windows File Server
• Windows Installer
• Windows iSCSI Target Service
• Windows Kerberos
• Windows Kernel
• Windows Local Security Authority Subsystem Service
• Windows Media
• Windows Network File System
• Windows PowerShell
• Windows Print Spooler Components
• Windows RDP
• Windows Remote Procedure Call Runtime
• Windows schannel
• Windows SMB
• Windows Telephony Server
• Windows Upgrade Assistant
• Windows User Profile Service
• Windows Win32K
• Windows Work Folder Service
• YARP reverse proxy

Please note the following information regarding the security updates:

Security Update Guide Blog Posts

Date	Blog Post
January 11, 2022	Coming Soon: New Security Update Guide Notification System
February 9, 2021	Continuing to Listen: Good News about the Security Update Guide API
January 13, 2021	Security Update Guide Supports CVEs Assigned by Industry Partners
December 8, 2020	Security Update Guide: Let’s keep the conversation going
November 9, 2020	Vulnerability Descriptions in the New Version of the Security Update Guide

Relevant Information

• The new Hotpatching feature is now generally available. Please see  Hotpatching feature for Windows Server Azure Edition virtual machines (VMs) for more information.
• Windows 10 updates are cumulative. The monthly security release includes all security fixes for vulnerabilities that affect Windows 10, in addition to non-security updates. The updates are available via the  Microsoft Update Catalog. For information on lifecycle and support dates for Windows 10 operating systems, please see  Windows Lifecycle Facts Sheet.
• Microsoft is improving Windows Release Notes. For more information, please see  What's next for Windows release notes.
• A list of the latest servicing stack updates for each operating system can be found in  ADV990001. This list will be updated whenever a new servicing stack update is released. It is important to install the latest servicing stack update.
• In addition to security changes for the vulnerabilities, updates include defense-in-depth updates to help improve security-related features.
• Customers running Windows 7, Windows Server 2008 R2, or Windows Server 2008 need to purchase the Extended Security Update to continue receiving security updates. See  4522133 for more information.

FAQs, Mitigations, and Workarounds

The following CVEs have FAQs, Mitigations, or Workarounds. You can see these in more detail from the Vulnerabilities tab by selecting FAQs, Mitigations and Workarounds columns in the Edit Columns panel.

• CVE-2022-1125
• CVE-2022-1127
• CVE-2022-1128
• CVE-2022-1129
• CVE-2022-1130
• CVE-2022-1131
• CVE-2022-1133
• CVE-2022-1134
• CVE-2022-1135
• CVE-2022-1136
• CVE-2022-1137
• CVE-2022-1138
• CVE-2022-1139
• CVE-2022-1143
• CVE-2022-1145
• CVE-2022-1146
• CVE-2022-1232
• CVE-2022-21983
• CVE-2022-22008
• CVE-2022-22009
• CVE-2022-23257
• CVE-2022-23259
• CVE-2022-23268
• CVE-2022-23292
• CVE-2022-24472
• CVE-2022-24473
• CVE-2022-24475
• CVE-2022-24482
• CVE-2022-24483
• CVE-2022-24485
• CVE-2022-24487
• CVE-2022-24490
• CVE-2022-24491
• CVE-2022-24492
• CVE-2022-24493
• CVE-2022-24495
• CVE-2022-24497
• CVE-2022-24498
• CVE-2022-24500
• CVE-2022-24523
• CVE-2022-24527
• CVE-2022-24528
• CVE-2022-24532
• CVE-2022-24533
• CVE-2022-24534
• CVE-2022-24536
• CVE-2022-24537
• CVE-2022-24539
• CVE-2022-24540
• CVE-2022-24541
• CVE-2022-24543
• CVE-2022-24545
• CVE-2022-24765
• CVE-2022-24767
• CVE-2022-26783
• CVE-2022-26785
• CVE-2022-26807
• CVE-2022-26808
• CVE-2022-26809
• CVE-2022-26811
• CVE-2022-26812
• CVE-2022-26813
• CVE-2022-26814
• CVE-2022-26815
• CVE-2022-26816
• CVE-2022-26817
• CVE-2022-26818
• CVE-2022-26819
• CVE-2022-26820
• CVE-2022-26821
• CVE-2022-26822
• CVE-2022-26823
• CVE-2022-26824
• CVE-2022-26825
• CVE-2022-26826
• CVE-2022-26827
• CVE-2022-26828
• CVE-2022-26829
• CVE-2022-26830
• CVE-2022-26891
• CVE-2022-26894
• CVE-2022-26895
• CVE-2022-26896
• CVE-2022-26897
• CVE-2022-26898
• CVE-2022-26900
• CVE-2022-26901
• CVE-2022-26903
• CVE-2022-26904
• CVE-2022-26907
• CVE-2022-26908
• CVE-2022-26909
• CVE-2022-26910
• CVE-2022-26911
• CVE-2022-26912
• CVE-2022-26916
• CVE-2022-26917
• CVE-2022-26918
• CVE-2022-26919
• CVE-2022-26920
• CVE-2022-26924

Known Issues

You can see these in more detail from the Deployments tab by selecting Known Issues column in the Edit Columns panel.

For more information about Windows Known Issues, please see  Windows message center (links to currently-supported versions of Windows are in the left pane).

KB Article	Applies To
5012591	Windows 10, version 1909
5012592	Windows 11
5012596	Windows 10, version 1607, Windows Server 2016
5012599	Windows 10, version 20H2, Windows Server, version 20H2, Windows 10, version 21H1, Windows 10, version 21H2
5012604	Windows Server 2022
5012626	Windows 7, Windows Server 2008 R2 (Monthly Rollup)
5012632	Windows Server 2008 (Security-only update)
5012639	Windows 8.1, Windows Server 2012 R2 (Security-only update)
5012647	Windows 10, version 1809
5012649	Windows 7, Windows Server 2008 R2 (Security-only update)
5012650	Windows Server 2012 (Monthly Rollup)
5012653	Windows 10
5012658	Windows Server 2008 (Monthly Rollup)
5012666	Windows Server 2012 (Security-only update)
5012670	Windows 8.1, Windows Server 2012 R2 (Monthly Rollup)
5002191	SharePoint Server Subscription Edition

Security Update Guide - Microsoft Security Response Center