Thanks xStainDx. Two security issues have been identified that could allow an attacker to compromise a computer running Microsoft BizTalk Server. This issue only affects computers configured as servers that are also running Microsoft BizTalk Server, and could allow an attacker to take control of the server.
If you restrict access between different users of your computer, you should install this update. If you are the only person who uses your computer, or if you do not use passwords or other measures to limit access to accounts on your computer, it is not important that you install this update.