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
.NETRelease Date:September 8, 2020
Version: .NET Framework 3.5, 4.7.2 and 4.8
This update is included in the Cumulative Update that's dated September 8, 2020. Parts of this update were previously released in the Cumulative Update that's dated August 20, 2020.
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.
Information about protection and security
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Protect yourself online: Windows Security support
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Learn how we guard against cyber threats: Microsoft Security
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