For Windows Server 2012
Below are the some vulnerabilities that we found in Windows Server 2012 and their solutions:
Download the updates and install on server to remove the vulnerabilities from your server and make your server secure.
Microsoft .NET Framework 4.7.2 offline installer for Windows
Microsoft CVE-2017-5715: Guidance to mitigate speculative execution side-channel vulnerabilities
2018-07 Security Only Quality Update for Windows Server 2012 for x64-based Systems (KB4338820)
Microsoft CVE-2020-0689: Microsoft Secure Boot Security Feature Bypass Vulnerability
Microsoft CVE-2020-1147: .NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability