CVE-2016-7270
The Data Provider for SQL Server in Microsoft .NET Framework 4.6.2 mishandles a developer-supplied key, which allows remote attackers to bypass the Always Encrypted protection mechanism and obtain sensitive cleartext information by leveraging key guessability, aka ".NET Information Disclosure Vulnerability."
Date published : 2016-12-20
http://www.securityfocus.com/bid/94741
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-155