Description of the security update for Microsoft Visual Studio 2012 Update 5: September 8, 2020

Applies to: Visual Studio 2012 Update 5

Note This security update applies to Visual Studio 2012 Update 5 except for Visual Studio Isolated and Integrated Shells, Build Tools, Remote Tools, and Express for Web.


A remote code execution vulnerability exists in Microsoft Visual Studio 2012 when it incorrectly handles objects in memory.

To learn more about the vulnerability, see CVE-2020-16874 and CVE-2020-16856.

How to obtain and install the update

Method 1: Microsoft Download

The following file is available for download:

Download Download the hotfix package now.

Method 2: Microsoft Update Catalog

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

More information


To apply this security update, you must have Visual Studio 2012 Update 5 installed.

Restart requirement

You may have to restart the computer after you apply this security update if an instance of Visual Studio is being used.

Security update replacement information

This security update doesn't replace other security updates.

Deployment information

For deployment details for this security update, see the following Knowledge Base article:

Security update deployment information: September 8, 2020

File hash information

File name SHA1 hash SHA256 hash
VS11-KB4571479.exe FDD73E3F5F720BFF19756657C88EAA687FE6EB42 33E61446C555C25645097119F8A6C6AD91DC58297D5C1D630BA331594C324894

File information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Installation verification

To verify that this security update is applied correctly, follow these steps:

  1. Open the Visual Studio 2012 program folder.
  2. Locate the Dxtex.dll file in the Microsoft Visual Studio 11.0\Common7\IDE\Extensions\Microsoft\VsGraphics folder.
  3. Verify that the file version is equal to or greater than 11.0.61246.400.

Information about protection and security

Protect yourself online: Windows Security support

Learn how we guard against cyber threats: Microsoft Security