Microsoft Windows Server 2008 SP2 and R2 SP1 and Server 2012 Gold and R2 allow remote attackers to cause a denial of service (iSCSI service outage) by sending many crafted packets, aka "iSCSI Target Remote Denial of Service Vulnerability."
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-028