This indicates an attack attempt to exploit a remote Code Execution vulnerability in Microsoft Internet Explorer.
The vulnerability is due to an error when the vulnerable software handles a maliciously crafted webpage. An attacker can exploit this by tricking an unsuspecting user into visiting a malicious webpage and execute arbitrary code within the context of the application.
Internet Explorer 6
Internet Explorer 7
Internet Explorer 8
Internet Explorer 9
Internet Explorer 10
System Compromise: Remote attackers can execute arbitrary code within the context of the target user's browser.
Apply the most recent upgrade or patch from the vendor.