Multiple vulnerabilities were found in Microsoft Developer Tools. Malicious users can exploit these vulnerabilities to gain privileges, cause denial of service, spoof user interface.

Below is a complete list of vulnerabilities:

1. An elevation of privilege vulnerability in Diagnostic Hub Standard Collector can be exploited remotely via specially crafted application to gain privileges.
2. A denial of service vulnerability in Visual Studio Extension Installer Service can be exploited remotely via specially crafted application to cause denial of service.
3. An elevation of privilege vulnerability in Azure DevOps Server and Team Foundation Services can be exploited remotely to gain privileges.
4. An elevation of privilege vulnerability in Diagnostics Hub Standard Collector can be exploited remotely to gain privileges.
5. A cross-site-scripting (XSS) vulnerability Azure DevOps Server can be exploited remotely via specially crafted payload to spoof user interface.
6. A spoofing vulnerability in Microsoft Visual Studio can be exploited remotely to spoof user interface.

Windows Server, version 1803 (Server Core Installation)
Azure DevOps Server 2019.0.1
Windows Server 2019 (Server Core installation)
Microsoft Visual Studio 2019 version 16.0
Windows 10 Version 1607 for x64-based Systems
Windows 10 Version 1709 for ARM64-based Systems
Windows 10 Version 1709 for x64-based Systems
Windows 10 for x64-based Systems
Windows Server 2016
Microsoft Visual Studio 2017 version 15.9 (includes 15.1 - 15.8)
Team Foundation Server 2018 Update 3.2
Windows 10 Version 1803 for x64-based Systems
Windows 10 Version 1809 for x64-based Systems
Windows 10 Version 1803 for ARM64-based Systems
Windows 10 Version 1909 for ARM64-based Systems
Team Foundation Server 2017 Update 3.1
Windows 10 Version 1809 for ARM64-based Systems
Windows 10 for 32-bit Systems
Windows Server, version 1903 (Server Core installation)
Windows 10 Version 1809 for 32-bit Systems
Windows Server 2016 (Server Core installation)
Windows Server 2019
Azure DevOps Server 2019 Update 1.1
Windows 10 Version 1903 for ARM64-based Systems
Windows Server, version 1909 (Server Core installation)
Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)
Microsoft Visual Studio 2015 Update 3
Windows 10 Version 1709 for 32-bit Systems
Windows 10 Version 1803 for 32-bit Systems
Windows 10 Version 1903 for x64-based Systems
Windows 10 Version 1607 for 32-bit Systems
Team Foundation Server 2018 Update 1.2
Windows 10 Version 1909 for x64-based Systems
Windows 10 Version 1903 for 32-bit Systems
Windows 10 Version 1909 for 32-bit Systems
Azure DevOps Server 2019 Update 1

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

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