The host is missing a critical security update according to Microsoft security bulletin, MS10-086. The update is required to fix insecure permissions vulnerability. A flaw is present in the user interface in Microsoft Cluster Service (MSCS) in Windows Server 2008 R2, which fails to set administrative-share permissions for new cluster disks that are shared as part of a failover cluster. Successful exploitation could allow an attacker to gain read, write or delete access to the admin shares.