Win Update KB5031217 Cumulative Update .NET Framework 3.5 and 4.8.1 (22H2)


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September 12, 2023 - KB5031217 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2​


Security Improvements

CVE-2023-36796 - .NET Framework Remote Code Execution Vulnerability
This security update addresses a vulnerability in DiaSymReader.dll when reading a corrupted PDB file which can lead to Remote Code Execution. For more information see CVE 2023-36796.

CVE-2023-36792 - .NET Framework Remote Code Execution Vulnerability
This security update addresses a vulnerability in DiaSymReader.dll when reading a corrupted PDB file which can lead to Remote Code Execution. For more information see CVE-2023-36792.

CVE-2023-36793 - .NET Framework Remote Code Execution Vulnerability
This security update addresses a vulnerability in DiaSymReader.dll when reading a corrupted PDB file which can lead to Remote Code Execution. For more information see CVE-2023-36793.

CVE-2023-36794 - .NET Framework Remote Code Execution Vulnerability
This security update addresses a vulnerability in DiaSymReader.dll when reading a corrupted PDB file which can lead to Remote Code Execution. For more information see CVE-2023-36794.

CVE-2023-36788 - .NET Framework Remote Code Execution Vulnerability
This security update addresses a vulnerability in the WPF XAML parser where an unsandboxed parser can lead to remote code execution. For more information see CVE 2023-36788.

Quality and Reliability Improvements

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

Known issues in this update​

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

Additional information about this update​

The following articles contain additional information about this update as it relates to individual product versions.
  • 5029921 Description of the Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 (KB5029921)

How to get this update​

Release ChannelAvailableNext Step
Windows Update and Microsoft UpdateYesNone. This update will be downloaded and installed automatically from Windows Update.
Windows Update for BusinessYesNone. This update will be downloaded and installed automatically from Windows Update.
Microsoft Update CatalogYesTo get the standalone package for this update, go to the Microsoft Update Catalog website.
Windows Server Update Services (WSUS)YesThis operating system update will offer, as applicable, and individual .NET Framework product updates will be installed. For more information about individual .NET Framework product updates see additional information about this update section.
This update will automatically sync with WSUS if you configure as follows:
Product: Windows 11, version 22H2
Classification: Security Updates
Click to expand...

Source:

September 12, 2023-KB5031217 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 - Microsoft Support

support.microsoft.com support.microsoft.com
devblogs.microsoft.com

.NET Framework September 2023 Security and Quality Rollup Updates - .NET Blog

September 2023 Security and Quality Rollup Updates for .NET Framework.
devblogs.microsoft.com devblogs.microsoft.com
 

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My Computers

System One System Two

  • OS
    Windows 11 Pro 22631.3374
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo
    CPU
    Intel Celeron N4000 @ 1.10GHz Gemini Lake 14nm
    Motherboard
    LENOVO LNVNB161216 (U3E1)
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    8GB Ram
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    Intel UHD Graphics 600 (Lenovo)
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    Chrome/Edge
    Antivirus
    Microsoft Defender
  • Operating System
    Windows 10 Pro
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo
    CPU
    Intel Celeron N4000 @ 1.10GHz Gemini Lake 14nm
    Motherboard
    LENOVO LNVNB161216 (U3E1)
    Memory
    8GB Ram
    Graphics card(s)
    Intel UHD Graphics 600 (Lenovo)
    Sound Card
    Realtek High Definition Audio Intel Display Audio
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    Generic PnP Monitor (1920x1080@60Hz)
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    1920x1080
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    G5 Gaming Mouse
    Keyboard
    Laptop Keyboard
    Internet Speed
    50mbps/50mbps
    Browser
    Chrome/Edge
    Antivirus
    Microsoft Defender

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom Build
    CPU
    Intel Core i9 12900KF
    Motherboard
    ASUS ROG Maximus Z690 Hero
    Memory
    Corsair 64GB DDR5 Vengeance C40 5200Mhz
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    ASUS GeForce RTX 3090 ROG Strix OC 24GB
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    Acer Predator XB323UGP 32" QHD G-SYNC-C 144Hz 1MS IPS LED
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    1x Samsung 980 Pro Series Gen4 250GB M.2 NVMe
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    Yamaha Amp with Bose Speakers
Coming...

1694574521157.png
 

My Computer

System One

  • OS
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Asus/Custom Build
    CPU
    Intel® Xeon® X5690 3.47GHz Six-Core
    Motherboard
    Asus P6T Deluxe v2
    Memory
    G.Skill PC3-12800 1600MHz 24GB
    Graphics Card(s)
    NVIDIA GeForce GTX 1050
    Sound Card
    SoundMAX ADI AD2000B HD Audio
    Monitor(s) Displays
    Acer T232HL Touch Screen
    Screen Resolution
    1920 x 1080 @ 60Hz
    Hard Drives
    6 Crucial MX500 SSD 1TB each.
    PSU
    Thermaltake Toughpower Gold 850W
    Case
    Thermaltake Armor VA8000SWA
    Cooling
    Thermaltake Air Cooling System
    Keyboard
    Illuminated Multimedia LED Keyboard
    Mouse
    M16 Dual Mode Illuminated Mouse - Bluetooth / 2.4 GHz Mode
    Internet Speed
    800 Mbps
    Browser
    Edge / Opera / Vivaldi / Chrome / Firefox / Brave
    Antivirus
    Windows Defender Security
Wolfzz said:
When I click the link Microsoft Update Catalog and then download it, it shows KB5029921

windows11.0-kb5029921-x64-ndp481_b1b8efa3b2131083c84b6fe6d397ea0c621687ed.msu

I presume they are the same?

This Link seems correct

September 12, 2023-KB5029921 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 and Windows 11, version 23H2 - Microsoft Support

support.microsoft.com support.microsoft.com
Click to expand...

Jep, it seems that this months CU has two KBs: KB5029921 and KB5031217.
In both cases the update catalog points to the same file (windows11.0-kb5029921....msu).
Just internal communication problems at Microsoft? :unsure:

And the updates this month don't (yet?) appear in the Update History (W11 22H2, W11 21H2, W10 22H2) either - hope not that this has been abandoned.
 
Last edited:

My Computer

System One

  • OS
    Win11 22H2
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