Untrusted search path vulnerability in Microsoft Visio 2003 SP3 allows local users to gain privileges via a Trojan horse mfc71enu.dll file in the current working directory, as demonstrated by a directory that contains a .vsd, .vdx, .vst, or .vtx file, aka "Microsoft Visio Insecure Library Loading Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7122
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-055