This indicates an attack attempt to exploit an Privilege Escalation vulnerability in Microsoft Internet Explorer.
The vulnerability is due to an error when the vulnerable software handles a maliciously crafted DLL file. An attacker can exploit this by tricking an unsuspecting user into visiting a malicious webpage to download crafted DLL file and run the file to elevate their privileges on vulnerable systems.
Internet Explorer 6
Internet Explorer 7
Internet Explorer 8
Internet Explorer 9
Internet Explorer 10
Internet Explorer 11
Privilege Escalation: Remote attackers can leverage their privilege on the vulnerable systems.
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.