This indicates an attack attempt to exploit a Buffer Overflow vulnerability in Microsoft Internet Explorer.
The vulnerability is caused by an error in the "AxDebugger.Document.1" ActiveX control. It may allow remote attackers to execute arbitrary code in the context of the application using the affected ActiveX control. Failed exploit attempts will likely cause the program to crash, resulting in a denial-of-service condition.
Microsoft Internet Explorer
System Compromise: Remote attackers can gain control of vulnerable systems.
Currently we are not aware of any official patch for this issue.