This indicates an attempt to exploit a buffer overflow vulnerability in the MySpace Uploader ActiveX Control.
The software is vulnerable to a buffer overflow when an attacker passes an overly long string to the 'Action' property. This can lead to arbitrary code execution on the target computer.
Impact
System Compromise: remote code execution.
Affected Products
MySpaceUploader.ocx version 1.0.0.4 MySpaceUploader.ocx version 1.0.0.5