I’m not sure what information is needed to improve this, it gives a vulnerability as being Windows Vista when 2012 R2 Server is installed:
Vulnerability Detection Result
The “Windows Vista” Operating System on the remote host has reached the end of life.
CPE: cpe:/o:microsoft:windows_vista
EOL date: 2017-04-11
EOL info: support.microsoft.com/en-us/lifecycle/search?sort=PN&alpha=Windows%20Vista&Filter=FilterNO
Vulnerability Detection Method
Details: [OS End Of Life Detection (OID: 1.3.6.1.4.1.25623.1.0.103674)]
Version used: $Revision: 8927 $
Product Detection Result
Best matching OS:
OS: Microsoft Windows
CPE: cpe:/o:microsoft:windows
Found by NVT: 1.3.6.1.4.1.25623.1.0.111067 (HTTP OS Identification)
Concluded from X-Powered-By Server banner on port 80/tcp: X-Powered-By: ASP.NET
Setting key “Host/runs_windows” based on this information
Other OS detections (in order of reliability):
OS: Microsoft Windows Server 2012 R2 or Microsoft Windows 8.1
CPE: cpe:/o:microsoft:windows
Found by NVT: 1.3.6.1.4.1.25623.1.0.111067 (HTTP OS Identification)
Concluded from HTTP Server banner on port 80/tcp: Server: Microsoft-IIS/8.5
OS: Microsoft Windows Vista
CPE: cpe:/o:microsoft:windows_vista
Found by NVT: 1.3.6.1.4.1.25623.1.0.111067 (HTTP OS Identification)
Concluded from HTTP Server banner on port 8082/tcp: Server: Jetty/5.1.x (Windows Vista/6.2 x86 java/1.6.0_03
OS: Microsoft Windows
CPE: cpe:/o:microsoft:windows
Found by NVT: 1.3.6.1.4.1.25623.1.0.100062 (Microsoft Remote Desktop Protocol Detection)
Concluded from Microsoft Remote Desktop Protocol on port 3389/tcp: Windows, possible Windows 8, 8.1 or Server 2012 based on binary response fingerprinting: 030000130ed00000123400020f080002000000
OS: Microsoft Windows
CPE: cpe:/o:microsoft:windows
Found by NVT: 1.3.6.1.4.1.25623.1.0.108044 (DCE/RPC and MSRPC Services Enumeration)
Concluded from DCE/RPC and MSRPC Services Enumeration on port 135/tcp