Prerequisites
To apply this security update, you must have Visual Studio 2015 Update 3 installed.
Restart requirement
You may have to restart the computer after you apply this security update if no instance of Visual Studio is being used.
Security update replacement information
This security update doesn't replace other security updates.
Issues that are fixed in this security update
This security update addresses the PDB issue that is described in CVE-2018-1037, in which a PDB file may contain uninitialized heap content in a process that updates an existing PDB file, such as mspdbcmf.exe. This security hotfix contains update to mspdbcmf.exe only. We strongly recommend that you install this related security update and use the updated PDBCopy tool to check every existing PDB that you intend to share or distribute.