Release Notes
April 2020 Security Updates
Release Date: April 14, 2020
The April 2020 security release consists of security updates for the following software:
Microsoft Windows
Microsoft Edge (EdgeHTML-based)
Microsoft Edge (Chromium-based)
ChakraCore
Internet Explorer
Microsoft Office and Microsoft Office Services and Web Apps
Windows Defender
Visual Studio
Microsoft Dynamics
Microsoft Apps for Android
Microsoft Apps for Mac
Please note the following information regarding the security updates:
For information regarding enabling Windows 10, version 1909 features, please see Windows 10, version 1909 delivery options. Note that Windows 10, versions 1903 and 1909 share a common core operating system with an identical set of system files. They will also share the same security update KBs.
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.
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.
Updates for Windows RT 8.1 and Microsoft Office RT software are only available via Windows 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.
The following CVEs have FAQs with additional information and may include * further steps to take after installing the updates. Please note that this is not a complete list of CVEs for this release.
CVE-2020-0699
CVE-2020-0760
CVE-2020-0821
CVE-2020-0835 *
CVE-2020-0906
CVE-2020-0920
CVE-2020-0923
CVE-2020-0924
CVE-2020-0925
CVE-2020-0926
CVE-2020-0927
CVE-2020-0929
CVE-2020-0930
CVE-2020-0931
CVE-2020-0932
CVE-2020-0933
CVE-2020-0935 *
CVE-2020-0937
CVE-2020-0939
CVE-2020-0945
CVE-2020-0946
CVE-2020-0947
CVE-2020-0952
CVE-2020-0954
CVE-2020-0955 *
CVE-2020-0961
CVE-2020-0962
CVE-2020-0971
CVE-2020-0972
CVE-2020-0973
CVE-2020-0974
CVE-2020-0975
CVE-2020-0976
CVE-2020-0977
CVE-2020-0978
CVE-2020-0979
CVE-2020-0980
CVE-2020-0982
CVE-2020-0987
CVE-2020-0991
CVE-2020-1002 *
CVE-2020-1005
CVE-2020-1007
CVE-2020-1016
CVE-2020-1018
Known Issues
The following KBs contain information about known issues with the security updates. For a complete list of security update KBs, please see 20200414. 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
3128012 Microsoft Office 2016
3162033 Microsoft Publisher 2013
3203462 Microsoft Office 2010
4011097 Microsoft Publisher 2016
4011104 Microsoft Office 2013
4032216 Microsoft Publisher 2010
4462210 Microsoft Access 2013
4462225 Microsoft Visio 2010
4464527 Microsoft Access 2010
4464544 Microsoft Visio 2013
4484117 Microsoft Office 2013
4484125 Microsoft Project 2013
4484126 Microsoft Office 2010
4484132 Microsoft Project 2010
4484167 Microsoft Access 2016
4484214 Microsoft Office 2016
4484226 Microsoft PowerPoint 2013
4484235 Microsoft PowerPoint 2010
4484244 Microsoft Visio 2016
4484246 Microsoft PowerPoint 2016
4484269 Microsoft Project 2016
4484273 Microsoft Excel 2016
4484274 Microsoft Outlook 2016
4484281 Microsoft Outlook 2013
4484283 Microsoft Excel 2013
4484284 Microsoft Outlook 2010
4484285 Microsoft Excel 2010
4484295 Microsoft Word 2010
4484300 Microsoft Word 2016
4484319 Microsoft Word 2013
4549949 Windows 10 Version 1809, Windows Server 2019
4550905 Internet Explorer
4550917 Windows Server 2012 (Monthly Rollup)
4550922 Windows 10, version 1803
4550927 Windows 10, version 1709
4550929 Windows 10, version 1607, Windows Server 2016
4550930 Windows 10
4550951 Windows Server 2008 Service Pack 2 (Monthly Rollup)
4550957 Windows Server 2008 Service Pack 2 (Security-only update)
4550961 Windows 8.1, Windows Server 2012 R2 (Monthly Rollup)
4550964 Windows 7, Windows Server 2008 R2 (Monthly Rollup)
4550965 Windows 7, Windows Server 2008 R2 (Security-only update)
4550970 Windows 8.1, Windows Server 2012 R2 (Security-only update)
4550971 Windows Server 2012 (Security-only update)
https://portal.msrc.microsoft.com/en-us/security-guidance/releasenotedetail/2020-Apr
