KB4555452 Cumulative Update .NET Framework 3.5, 4.8 Windows 10 May 12 Win Update

    KB4555452 Cumulative Update .NET Framework 3.5, 4.8 Windows 10 May 12

    KB4555452 Cumulative Update .NET Framework 3.5, 4.8 Windows 10 May 12

    For Windows 10 Version 2004
    Category: Win Update
    Last Updated: 10 Jun 2020 at 14:11

    New KB4555452 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version Next released to Windows Insiders in the Fast ring.

    May 12, 2020 - KB4552925 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 2004

    Summary

    A remote code execution vulnerability exists in .NET Framework software when the software fails to check the source markup of a file. 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 file with an affected version of .NET Framework. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. The security update addresses the vulnerability by correcting how .NET Framework checks the source markup of a file.

    To learn more about the vulnerabilities, go to the following Common Vulnerabilities and Exposures (CVE).


    A denial of service vulnerability exists when .NET Framework improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET Framework web application. The vulnerability can be exploited remotely, without authentication. A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the .NET Framework application. The update addresses the vulnerability by correcting how the .NET Framework web application handles web requests.

    To learn more about the vulnerabilities, go to the following Common Vulnerabilities and Exposures (CVE).


    Known issues in this update

    Microsoft is not currently aware of any issues in this update.

    How to get this update

    Install this update

    This update will be downloaded and installed automatically from Windows Update.

    To get the standalone package for this update, go to the Microsoft Update Catalog website.

    File information

    For a list of the files that are provided in this update, download the file information for cumulative update.

    Source: https://support.microsoft.com/en-us/...-net-framework


    Direct download links for KB4555452 MSU file from Microsoft Update Catalog:

    Download KB4555452 MSU for Windows 10 v2004 32-bit (x86) - 32.4 MB

    Download KB4555452 MSU for Windows 10 v2004 64-bit (x64) - 54.0 MB

    Download KB4555452 MSU for Windows 10 v2004 ARM64 - 32.4 MB

    KB4555452 Cumulative Update .NET Framework 3.5, 4.8 Windows 10 May 12-kb4555452.jpg
    Brink's Avatar Posted By: Brink
    12 May 2020


  1. Posts : 512
    Windows 11 Pro( x64) Ver. DEV.CHANNEL 22518.1012 RS_Prerelease
       #1

    KB4555452 Cumulative Update .NET Framework 3.5, 4.8 Windows 10 May 12-annotation-2020-05-13-030254.png
    downloading
      My Computer


  2. Posts : 2,491
    Windows Insider Fast Ring LatestKUuuntu 20.10
       #2

    Installing this now. I received an error re AMD Radeon and re-installed using the AMD detect and install software. I had a choice of downgrading or upgrading the software and chose upgrade. It's prompting for a restart on the NetFramework update above so I will do it now.
      My Computers


  3. Posts : 13,898
    Win10 Version 22H2 Pro and Home, Win11 Pro and Home
       #3

    Interesting, mine shows a different KB number.
    KB4555452 Cumulative Update .NET Framework 3.5, 4.8 Windows 10 May 12-image.png

    EDIT: I just spotted the difference, mine is Pro not Next.
      My Computers


  4. Posts : 2,491
    Windows Insider Fast Ring LatestKUuuntu 20.10
       #4

    OK on reboot. We'll see if we get a new build later today. I'll actually be out and about for awhile I had the same KB number as @Brink and @aswin.
      My Computers


  5. Posts : 68,668
    64-bit Windows 11 Pro for Workstations
    Thread Starter
       #5

    Getting KB4555452 again in Windows 10 build 19621 Fast ring.

    KB4555452 Cumulative Update .NET Framework 3.5, 4.8 Windows 10 May 12-kb4555452.jpg
      My Computers


  6. Posts : 19,516
    W11+W11 Developer Insider + Linux
       #6

    KB4555452 Cumulative Update .NET Framework 3.5, 4.8 Windows 10 May 12-image.png
      My Computers


  7. Posts : 68,668
    64-bit Windows 11 Pro for Workstations
    Thread Starter
       #7

    I keep getting this update automatically installed again about a day after each new Insider build release.

    I notice it when I get the restart computer notification out of the blue.
      My Computers


  8. Posts : 19,516
    W11+W11 Developer Insider + Linux
       #8

    Brink said:
    I keep getting this update automatically installed again about a day after each new Insider build release.

    I notice it when I get the restart computer notification out of the blue.
    Others too had it reinstalled several times even on same build..
      My Computers


 

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