KB4555452 .NET Framework 4.8 and 3.5 Windows 10 2004

Changelog and details of KB4555452 .NET Framework 4.8 and 3.5 Windows 10 2004.

KB4555452 .NET Framework 4.8 and 3.5 Windows 10 2004

Windows 2004 aka the upcoming May 2020 update has received a cumulative update for .Net framework for the fast ring. The patch is aimed to fight a vulnerability that could exploit system by taking the administrator right. KB4555452 is the update available for .NET Framework 4.8 and 3.5.

You can manually install the update from Microsoft update catalog to protect your computer from the vulnerability being injected by arbitrary code.

KB4555452 .NET Framework 4.8 and 3.5 Windows 10 2004

The description of the patch is –

A remote code execution vulnerability exists in .NET Framework software when the software fails to check the source markup of a le. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Exploitation of the vulnerability requires that a user open a specially crafted le with an affected version of .NET Framework. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted le to the user and convincing the user to open the le. The security update addresses the vulnerability by correcting how .NET Framework checks the source markup of a file.

To know the detail of the vulnerabilities, navigate to the Common Vulnerabilities and Exposures – CVE-2020-0605

A denial of service vulnerability is present when .NET Framework accurately manages web request. An Invader who successfully manipulated this vulnerability could lead to a denial of service against a .NET Framework web application. This can be exploited using remote connection, without any authentication. A remote illegitimate attacker could exploit this vulnerability by sending manipulated and crafted requests to the .NET Framework app. KB4555452 addresses the vulnerability by correcting how the .NET Framework web application handles web requests.

To get more information about the vulnerabilities, go to – CVE-2020-1108

There is no known issue in this update till the release.

You can download KB4555452 from here and install on your PC.

Source –

See more posts on Windows 10 2004 –
1] Fix Windows 10 2004 May 2020 update issues and solutions
2] Windows 10 May 2020 update release date revealed [Version 2004]
3] Windows 10 2004 System Requirements [x64, x86]
4] How to Rollback Windows 10 2004 May 2020 Update
5] How to Block Windows 10 2004 May 2020 Update

That’s all!!!

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Topics:  Windows update
About Sunita
Love to play with Windows 11 and 10. Suggestion - Going for Registry change or system files edit then remember to take a backup or create a restore point before Starting.