Untrusted search path vulnerability in NFC Port Software Version 5.5.0.6 and earlier (for RC-S310, RC-S320, RC-S330, RC-S370, RC-S380, RC-S380/S), NFC Port Software Version 5.3.6.7 and earlier (for RC-S320, RC-S310/J1C, RC-S310/ED4C), PC/SC Activator for Type B Ver.1.2.1.0 and earlier, SFCard Viewer 2 Ver.2.5.0.0 and earlier, NFC Net Installer Ver.1.1.0.0 and earlier allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.