KLA11956
Multiple vulnerabilities in Microsoft Developer Tools

Multiple vulnerabilities were found in Microsoft Developer Tools. Malicious users can exploit these vulnerabilities to gain privileges, execute arbitrary code, bypass security restrictions.

Below is a complete list of vulnerabilities:

1. An elevation of privilege vulnerability in Diagnostics Hub Standard Collector can be exploited remotely via specially crafted application to gain privileges.
2. A remote code execution vulnerability in Visual Studio can be exploited remotely via specially crafted file to execute arbitrary code.
3. A remote code execution vulnerability in Visual Studio JSON can be exploited remotely to execute arbitrary code.
4. A security feature bypass vulnerability in Microsoft ASP.NET Core can be exploited remotely to bypass security restrictions.
5. A security feature bypass vulnerability in Windows Defender Application Control can be exploited remotely to bypass security restrictions.

ASP.NET Core 3.1
Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)
Microsoft Visual Studio 2019 version 16.0
Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)
Visual Studio Code
ASP.NET Core 2.1
Microsoft Visual Studio 2013 Update 5
Microsoft Visual Studio 2012 Update 5
Microsoft Visual Studio 2015 Update 3
PowerShell 7.1
PowerShell 7.0
Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

4576950
4571480
4571481