Severity Rating: Important
Revision Note: V1.1 (May 12, 2016): Revised bulletin to announce a detection change for the 3142037 update for .NET Framework 4.6. This is an informational change only. Customers who have already successfully updated their systems do not need to take any action.
Summary: This security update resolves a vulnerability in Microsoft .NET Framework. The vulnerability could cause information disclosure if an attacker injects unencrypted data into the target secure channel and then performs a man-in-the-middle (MiTM) attack between the targeted client and a legitimate server.