This indicates an attack attempt to exploit a Code Execution vulnerability in Microsoft Office Word.
The vulnerability is due to an error when the vulnerable software handles a maliciously crafted DOC file. An attacker can exploit this by tricking an unsuspecting user into openning a malicious DOC file and execute arbitrary code within the context of the application.
Microsoft Office 2007 Service Pack 3
Microsoft Office 2010 Service Pack 2 (32-bit editions)
Microsoft Office 2010 Service Pack 2 (64-bit editions)
Microsoft Office Web Apps 2010 Service Pack 2
Microsoft Business Productivity Servers 2010
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.