CVE-2020-16856: 
Visual Studio 2022 vulnerability analysis and mitigation

A remote code execution vulnerability (CVE-2020-16856) was identified in Microsoft Visual Studio 2015 and 2013 when the software incorrectly handles objects in memory. The vulnerability was disclosed and patched on September 8, 2020. The affected versions include Visual Studio 2015 Update 3 and Visual Studio 2013 Update 5, excluding Isolated and Integrated Shells, Build Tools, Remote Tools, and Express for Web editions (Microsoft Support 2015, Microsoft Support 2013).

The vulnerability stems from improper memory object handling in Visual Studio. For Visual Studio 2015, the affected component is the Dxtex.dll file located in the Microsoft Visual Studio 14.0\Common7\IDE\Extensions\Microsoft\VsGraphics folder, with the patched version being 14.0.27543.0 or greater. For Visual Studio 2013, the affected component has the same file name but is located in the Visual Studio 12.0 path, with the patched version being 12.0.40689.0 or greater (Microsoft Support 2015, Microsoft Support 2013).

The vulnerability could allow remote code execution if successfully exploited, potentially enabling an attacker to execute arbitrary code in the context of the current user (Microsoft Support 2015).

Microsoft has released security updates for both affected versions. For Visual Studio 2015 Update 3, users must have both the base Update 3 and Cumulative Servicing Release KB 3165756 installed before applying the security update. The update can be obtained through Microsoft Download or the Microsoft Update Catalog. Users are recommended to close Visual Studio before installing the update to avoid potential system restarts (Microsoft Support 2015).