This indicates an attack attempt to exploit a remote Code Execution vulnerability in Microsoft Active Template Library (ATL).
The vulnerability is due to insufficient sanitizing of user supplied inputs in the application. 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.
Microsoft Windows 2000 all versions
Windows XP all versions
Windows Server 2003 all versions
Windows Server 2008 all versions
Windows Vista all versions
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.