Multiple buffer overflows in the WebHPVCInstall.HPVirtualRooms14 ActiveX control in HPVirtualRooms14.dll 1.0.0.100, as used in the installation process for HP Virtual Rooms, allow remote attackers to execute arbitrary code via a long (1) AuthenticationURL, (2) PortalAPIURL, or (3) cabroot property value.  NOTE: some of these details are obtained from third party information.