This indicates an attempt to exploit a remote Code Execution vulnerability in Microsoft Windows ATMFD font driver.
The vulnerability is caused by an error when the vulnerable software handles a crafted font file. A remote attacker may be able to exploit this to execute arbitrary code within the context of the application, via a crafted font file.
Windows Vista Service Pack 2
Windows Server 2008 Service Pack 2
Windows 7 Service Pack 1
Windows Server 2008 R2 Systems Service Pack 1
Windows Server 2012 and Windows Server 2012 R2
Windows RT and Windows RT 8.1
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.