KB4578013 Security update released for Windows 8.1 - August 19

Security update for Windows 8.1, RT 8.1, and Server 2012 R2: August 19, 2020

Applies to: Windows 8.1, Windows RT 8.1, Windows Server 2012 R2

Summary

This update resolves vulnerabilities in the Windows operating systems that are listed in the "Applies to" section. To learn more about these vulnerabilities, see the following articles:

• CVE-2020-1530 | Windows Remote Access Elevation of Privilege Vulnerability
• CVE-2020-1537 | Windows Remote Access Elevation of Privilege Vulnerability

How to get this update

Microsoft Update Catalog

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Prerequisites

There are no prerequisites to apply this update.

Restart information

You do not have to restart your device after you apply this update.

Update replacement information

This update does not replace any previously released update.

Source: https://support.microsoft.com/en-us...ate-for-windows-8-1-rt-8-1-and-server-2012-r2


Direct download links for KB4578013 MSU file from Microsoft Update Catalog:

Download KB4578013 MSU for Windows 8.1 32-bit (x86) - 34.6 MB

Download KB4578013 MSU for Windows 8.1 64-bit (x64) - 53.8 MB

 

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Take action: August 19, 2020 Windows 8.1 and Windows Server 2012 R2 out of band security update available
An out of band security update has been released for Windows 8.1 and Windows Server 2012 R2. This update addresses two Windows Remote Access Elevation of Privilege vulnerabilities. We recommend that you install these updates promptly. For information about the update, see KB4578013. For more information about these vulnerabilities, see CVE-2020-1530 and CVE-2020-1537.

Note These vulnerabilities were already addressed for all other supported OSes in the August 11, 2020 release.