This indicates an attack attempt to exploit an Information Disclosure Vulnerability in Microsoft Windows.
The vulnerability is due to an error in the vulnerable application when handling a maliciously crafted file. An attacker can exploit this to disclose sensitive information on the affected machine via a crafted request.
Microsoft Windows 7
Microsoft Windows 8.1
Microsoft Windows RT 8.1
Microsoft Windows 10
Microsoft Windows Server 2008
Microsoft Windows Server 2012
Microsoft Windows Server 2016
Information Disclosure: Remote attackers can gain sensitive information from vulnerable systems.
Apply the most recent upgrade or patch from the vendor: