CVE-2017-11932
Microsoft Exchange Server 2016 CU5 and Microsoft Exchange Server 2016 CU5 allow a spoofing vulnerability due to the way Outlook Web Access (OWA) validates web requests, aka "Microsoft Exchange Spoofing Vulnerability".
Date published : 2017-12-12
http://www.securityfocus.com/bid/102060
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11932