Microsoft has published the July 2021 security updates.

July 2021 Security Updates

Updates this Month

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

• Common Internet File System
• Dynamics Business Central Control
• Microsoft Bing
• Microsoft Dynamics
• Microsoft Exchange Server
• Microsoft Graphics Component
• Microsoft Office
• Microsoft Office Excel
• Microsoft Office SharePoint
• Microsoft Scripting Engine
• Microsoft Windows Codecs Library
• Microsoft Windows DNS
• Microsoft Windows Media Foundation
• OpenEnclave
• Power BI
• Role: DNS Server
• Role: Hyper-V
• Visual Studio Code
• Visual Studio Code - .NET Runtime
• Visual Studio Code - Maven for Java Extension
• Windows Active Directory
• Windows Address Book
• Windows AF_UNIX Socket Provider
• Windows AppContainer
• Windows AppX Deployment Extensions
• Windows Authenticode
• Windows Cloud Files Mini Filter Driver
• Windows Console Driver
• Windows Defender
• Windows Desktop Bridge
• Windows Event Tracing
• Windows File History Service
• Windows Hello
• Windows HTML Platform
• Windows Installer
• Windows Kernel
• Windows Key Distribution Center
• Windows Local Security Authority Subsystem Service
• Windows MSHTML Platform
• Windows Partition Management Driver
• Windows PFX Encryption
• Windows Print Spooler Components
• Windows Projected File System
• Windows Remote Access Connection Manager
• Windows Remote Assistance
• Windows Secure Kernel Mode
• Windows Security Account Manager
• Windows Shell
• Windows SMB
• Windows Storage Spaces Controller
• Windows TCP/IP
• Windows Win32K

Please note the following information regarding the security updates:

Security Update Guide Blog Posts

Date	Blog Post
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

• 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-2021-31206
• CVE-2021-31947
• CVE-2021-31961
• CVE-2021-33749
• CVE-2021-33750
• CVE-2021-33752
• CVE-2021-33753
• CVE-2021-33756
• CVE-2021-33757
• CVE-2021-33760
• CVE-2021-33763
• CVE-2021-33764
• CVE-2021-33767
• CVE-2021-33768
• CVE-2021-33775
• CVE-2021-33776
• CVE-2021-33777
• CVE-2021-33778
• CVE-2021-33783
• CVE-2021-34440
• CVE-2021-34447
• CVE-2021-34451
• CVE-2021-34452
• CVE-2021-34454
• CVE-2021-34457
• CVE-2021-34458
• CVE-2021-34464
• CVE-2021-34469
• CVE-2021-34470
• CVE-2021-34474
• CVE-2021-34491
• CVE-2021-34496
• CVE-2021-34497
• CVE-2021-34500
• CVE-2021-34501
• CVE-2021-34507
• CVE-2021-34509
• CVE-2021-34518
• CVE-2021-34519
• CVE-2021-34521
• CVE-2021-34522
• CVE-2021-34527

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).

Security Update Guide - Microsoft Security Response Center

KB Article	Applies To
5004237	Windows 10, Version 2004, Windows Server, Version 2004, Windows 10, Version 20H2, Windows Server, Version 20H2, Windows 10, Version 21H1
5004244	Windows 10, Version 1809, Windows Server 2019
5004285	Windows 8.1, Windows RT 8.1, Windows Server 2012 R2 (Security-only update)
5004289	Windows 7 SP1, Windows Server 2008 R2 SP1 (Monthly Rollup)
5004294	Windows Server 2012 (Monthly Rollup)
5004298	Windows 8.1, Windows RT 8.1, Windows Server 2012 R2 (Monthly Rollup)
5004299	Windows Server 2008 SP2 (Security-only update)
5004302	Windows Server 2012 (Security-only update)
5004305	Windows Server 2008 SP2 (Monthly Rollup)
5004307	Windows 7 SP1, Windows Server 2008 R2 SP1(Security-only update)
5004778	Exchange Server 2013
5004779	Exchange Server 2016
5004780	Exchange Server 2019

Security Update Guide - Microsoft Security Response Center