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MicrosoftKB5006674
HistoryOct 12, 2021 - 12:00 a.m.

October 12, 2021—KB5006674 (OS Build 22000.258)

2021-10-1200:00:00
Microsoft
support.microsoft.com
28

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

7.5 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.512 Medium

EPSS

Percentile

97.5%

October 12, 2021—KB5006674 (OS Build 22000.258)

For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. For an overview of Windows 11 (original release), see its update history page.NoteFollow @WindowsUpdate to find out when new content is published to the release information dashboard.

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Highlights

  • Updates security for your Windows operating system.

Improvements and fixes

This security update includes quality improvements. Key changes include:

  • Addresses known compatibility issues between some Intel “Killer” and “SmartByte” networking software and Windows 11 (original release). Devices with the affected software might drop User Datagram Protocol (UDP) packets under certain conditions. This creates performance and other issues for protocols based on UDP. For example, some websites might load slower than others on the affected devices, which might cause videos to stream slower in certain resolutions. VPN solutions based on UDP might also be slower.
    If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.For more information about the resolved security vulnerabilities, please refer to the Security Update Guide website and the October 2021 Security Updates.

Windows 11 servicing stack update - 22000.190

  • This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.

Known issues in this update

__

Click or tap to view the known issues

Applies to Symptom Workaround
IT admins Devices that attempt to connect to a network printer for the first time might fail to download and install the necessary printer drivers.This issue has been observed in devices that access printers using a print server, using HTTP connections. When a client connects to the server to install the printer, a directory mismatch occurs, which causes the installer files to generate incorrectly. As a result, the drivers may not download.Note The printer connection methods described in this issue are not commonly used by devices designed for home use. The printing environments affected by this issue are more commonly found in enterprises and organizations. This issue is resolved in KB5006746.
IT admins Installation of printers using Internet Printing Protocol (IPP) might not complete successfully.NoteIPP is not commonly used by devices designed for home use. The printing environments affected by this issue are more commonly found in enterprises and organizations. This issue is resolved in KB5006746.
IT admins Printing properties defined on a server might not be correctly provided to clients. Note this issue is specific to print servers and does not impact standard network printing. This issue will not cause printing operations to fail, however, custom settings defined on the server – for example, duplex print settings – will not be applied automatically, and clients will print with default settings only.This issue results from an improper building of the data file which contains the printer properties. Clients which receive this data file will not be able to use the file content and will instead proceed with default printing settings. Servers which use default print settings and have no custom settings to provide to clients are unaffected.Note The printer connection methods described in this issue are not commonly used by devices designed for home use. The printing environments affected by this issue are more commonly found in enterprises and organizations. This issue is resolved in KB5006746.
IT admins You might receive a prompt for administrative credentials every time you attempt to print in environments in which the print server and print client are in different times zones.Note The affected environments described in this issue are not commonly used by devices designed for home use. The printing environments affected by this issue are more commonly found in enterprises and organizations. This issue is resolved in KB5006746.
IT admins After installing this update, Windows print clients might encounter the following errors when connecting to a remote printer shared on a Windows print server:
  • 0x000006e4 (RPC_S_CANNOT_SUPPORT)

  • 0x0000007c (ERROR_INVALID_LEVEL)

  • 0x00000709 (ERROR_INVALID_PRINTER_NAME)
    Note The printer connection issues described in this issue are specific to print servers and are not commonly observed in devices designed for home use. Printing environments affected by this issue are more commonly found in enterprises and organizations.| This issue is resolved in KB5007262.
    All users| After installing Windows 11, some image editing programs might not render colors correctly on certain high dynamic range (HDR) displays. This is frequently observed with white colors, which could display in bright yellow or other colors.This issue occurs when certain color-rendering Win32 APIs return unexpected information or errors under specific conditions. Not all color profile management programs are affected, and color profile options available in the Windows 11 Settings page, including Microsoft Color Control Panel, are expected to function correctly.| This issue is resolved in KB5008353.
    All users| Recent emails might not appear in the search results of the Microsoft Outlook desktop app. This issue is related to emails that have been stored locally in a PST or OST files. It might affect POP and IMAP accounts, as well as accounts hosted on Microsoft Exchange and Microsoft 365. If the default search in the Microsoft Outlook app is set to server search, the issue will only affect the advanced search.| This issue is resolved in KB5010386.
    All users| When attempting to reset a Windows device with apps that have folders with reparse data, such as OneDrive or OneDrive for Business, files which have been downloaded or synced locally from OneDrive might not be deleted when selecting the “Remove everything” option. This issue might be encountered when attempting a manual reset initiated within Windows or a remote reset. Remote resets might be initiated from Mobile Device Management (MDM) or other management applications, such as Microsoft Intune or third-party tools. OneDrive files that are “cloud only” or have not been downloaded or opened on the device are not affected and will not persist, as the files are not downloaded or synced locally.Note Some device manufacturers and some documentation might call the feature to reset your device, “Push Button Reset”, “PBR”, “Reset This PC”, “Reset PC”, or “Fresh Start”.| This issue was addressed in KB5011493. Some devices might take up to seven (7) days after the installation of KB5011493 to fully address the issue and prevent files from persisting after a reset. For immediate effect, you can manually trigger Windows Update Troubleshooter using the instructions in Windows Update Troubleshooter. If you are part of an organization that manages devices or prepared OS images for deployment, you can also address this issue by applying a compatibility update for installing and recovering Windows. Doing that makes improvements to the “safe operating system” (SafeOS) that is used to update the Windows recovery environment (WinRE). You can deploy these updates using the instructions in Add an update package to Windows RE using KB5012414 for Windows 11 (original release).ImportantIf devices have already been reset and OneDrive files have persisted, you must use a workaround above or perform another reset after applying one of the workarounds above.
    IT admins| Universal Windows Platform (UWP) apps might not open on devices that have undergone a Windows device reset. This includes operations that were initiated using Mobile Device Management (MDM), such as Reset this PC, Push-button reset, and Autopilot Reset. UWP apps you downloaded from the Microsoft Store are not affected. Only a limited set of apps are affected, including:

  • App packages with framework dependencies

  • Apps that are provisioned for the device, not per user account.
    The affected apps will fail to open without error messages or other observable symptoms. They must be re-installed to restore functionality.| This issue is addressed in KB5015882 for all releases starting October 12, 2021 and later.

How to get this update

Before installing this updateMicrosoft combines the latest servicing stack update (SSU) for your operating system with the latest cumulative update (LCU). For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.Install this update****Release Channel Available Next Step
Windows Update and Microsoft Update Yes None. This update will be downloaded and installed automatically from Windows Update.
Windows Update for Business Yes None. This update will be downloaded and installed automatically from Windows Update in accordance with configured policies.
Microsoft Update Catalog Yes To get the standalone package for this update, go to the Microsoft Update Catalog website.
Windows Server Update Services (WSUS) Yes This update will automatically sync with WSUS if you configure Products and Classifications as follows:Product: Windows 11Classification: Security Updates

If you want to remove the LCUTo remove the LCU after installing the combined SSU and LCU package, use the DISM/Remove-Package command line option with the LCU package name as the argument. You can find the package name by using this command:DISM /online /get-packages.Running Windows Update Standalone Installer (wusa.exe) with the**/uninstall **switch on the combined package will not work because the combined package contains the SSU. You cannot remove the SSU from the system after installation.

File informationFor a list of the files that are provided in this update, download the file information for cumulative update 5006674. For a list of the files that are provided in the servicing stack update, download the file information for the SSU - version 22000.190.

Use Vulners API to create your own security tool

API usage cases
  • Network scanning
  • Linux Patch management
  • Threat protection
  • No network audit solution

Ways of integration

Integrate Vulners API

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

7.5 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.512 Medium

EPSS

Percentile

97.5%

Related for KB5006674