Stack-based buffer overflow in the ADM4 ActiveX control in adm4.dll in Altnet Download Manager 4.0.0.6, as used in (1) Kazaa 3.2.7 and (2) Grokster, allows remote attackers to execute arbitrary code via a long argument to the Install method.  NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.