Untrusted search path vulnerability in Microsoft PowerPoint 2010 allows local users and possibly remote attackers to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse pptimpconv.dll that is located in the same folder as a .odp .pot .potm .potx .ppa .pps .ppsm .ppsx .ppt .pptm .pptx .pwz .sldm or .sldx file.