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CVE Number Vulnerability Product Severity Date
MS16-065 Security Update for .NET Framework (3156757) Microsoft .NET Critical 11-05-2016

Technical Information

Brief overview of the risk:
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.

Detailed Information on the risk:

To exploit the vulnerability, an attacker would first have to inject unencrypted data into the secure channel and then perform a man-in-the-middle (MiTM) attack between the targeted client and a legitimate server. The update addresses the vulnerability by modifying the way that the .NET encryption component sends and receives encrypted network packets.

Further information on this exploit is available at : MS16-065

Microsoft .NET Framework 2.0 Service Pack 2
Microsoft .NET Framework 4.5.2
Microsoft .NET Framework 4.6
Microsoft .NET Framework 3.5.1
Microsoft .NET Framework 3.5

Affected Software

Microsoft .NET Framework 2.0 Service Pack 2
Microsoft .NET Framework 4.5.2
Microsoft .NET Framework 4.6
Microsoft .NET Framework 3.5.1
Microsoft .NET Framework 3.5