September 8, 2020-KB4576627 Cumulative Update for .NET Framework 3.5, 4.7.2 and 4.8 for Windows 10 Version 1809 and Windows Server 2019

Applies to: .NET Framework

Summary


Security improvements

ClickOnce will no longer download applications from untrusted servers which use NTLM authentication, but, instead, will fail with “Authentication failed”. Sites in the Local Intranet and Trusted sites zones will continue to authenticate as before.

For a list of improvements that were released with this update, please see the article links in the Additional Information section of this article.

Additional information about this update


The following articles contain additional information about this update as it relates to individual product versions.
  • 4570720 Description of the Cumulative Update Preview for .NET Framework 3.5 and 4.7.2 for Windows 10 Version 1809 and Windows Server 2019 (KB4570720)
  • 4576483 Description of the Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 1809 and Windows Server 2019 (KB4576483)

Information about protection and security