The issue allows local users to gain privileges via a Trojan horse `mfc71enu.dll` file in the current working directory. This can be demonstrated by a directory that contains a .vsd, .vdx, .vst, or .vtx file. A remote code execution vulnerability exists in the way that Microsoft Visio handles the loading of DLL files, which could allow an attacker to take complete control of an affected system, enabling them to install programs, view, change, or delete data, or create new accounts with full user rights.