CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
84.7%
11/17/20 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 10, version 22H2, see its update history page.Note Follow @WindowsUpdate to find out when new content is published to the Windows release health dashboard.
Note To view the list of addressed issues, click or tap the OS name to expand the collapsible section.
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Windows 10, version 22H2
Important: Use EKB KB5015684 to update to Windows 10, version 22H2.
This security update includes quality improvements. Key changes include:
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Windows 10, version 21H2 editions: Windows 10 Enterprise LTSC 2021 and Windows 10 IoT Enterprise LTSC 2021
Important: Use EKB KB5003791 to update to Windows 10, version 21H2 on supported editions.
This security update includes quality improvements that were a part of update KB5040525 (released July 23, 2024). Below is a summary of the key issues that this update addresses when you install this KB. If there are new features, it lists them as well. The bold text within the brackets indicates the item or area of the change we are documenting.
If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device. For more information about security vulnerabilities, please refer to the new Security Update Guide website and the August 2024 Security Updates.
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.
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Known issues in this update
Symptom | Workaround |
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After installing this update, you might be unable to change your user account profile picture.When attempting to change a profile picture by selecting the button Start >Settings>Account >Your info and, underCreate your picture , clicking onBrowse for one, you might receive an error message with error code 0x80070520. | After further investigation, we concluded this issue has very limited or no impact for this Windows version.If you encounter this issue on your device, please contact Windows support for help |
After installing this security update, you might face issues with booting Linux if you have enabled the dual-boot setup for Windows and Linux in your device. Resulting from this issue, your device might fail to boot Linux and show the error message “Verifying shim SBAT data failed: Security Policy Violation. Something has gone seriously wrong: SBAT self-check failed: Security Policy Violation.”The August 2024 Windows security update applies a Secure Boot Advanced Targeting (SBAT) setting to devices that run Windows to block old, vulnerable boot managers. This SBAT update will not be applied to devices where dual booting is detected. On some devices, the dual-boot detection did not detect some customized methods of dual-booting and applied the SBAT value when it should not have been applied. | The September 2024 Windows security update (KB5043064) and later updates do not contain the settings that caused this issue.On Windows-only systems, after installing the September 2024 or later updates, you can set the registry key documented in CVE-2022-2601 and CVE-2023-40547 to ensure the SBAT security update is applied.On systems that dual-boot Linux and Windows, there are no additional steps necessary after installing the September 2024 or later updates. |
After installing this update, you might experience a black screen when you login to Azure Virtual Desktop (AVD). You might also notice that you are unable to log out of your account and the black screen persists even after disconnecting and reconnecting to AVD. Resulting from this issue, the application event log in Event viewer will show an application error with Event ID:1000 indicating a fault with the application ‘svchost.exe_AppXSvc’.Please note that AppX Deployment Service (AppxSvc) being in an invalid state could also cause other symptoms like the Start Menu to close unexpectedly due to registration issues. | This issue is resolved by installing the Windows updates released October 22, 2024 (KB5045594) or later updates and by applying one of the options mentioned in the Resolution section in KB5048864. Note that you need to perform both actions to resolve the issue. |
After installing this update, or subsequent updates, a small subset of Azure Virtual Desktop customers using multi-session hosts (AVD) may experience the following issues: |
This issue is caused by a deadlock in the interactions between the Azure Active Directory (AAD) broker and the underlying AppX deployment service(AppxSvc) and Background tasks infrastructure service. You are more likely to experience this issue if you are using FSLogix user profile containers on multi-session environments. FSLogix is a Microsoft tool that helps manage and speed up user profiles on computers, especially in virtual environments like remote desktops.| This issue is resolved by installing the Windows updates released October 22, 2024 (KB5045594) or later updates and by applying one of the options mentioned in the Resolution section in KB5048864. Note that you need to perform both actions to resolve the issue.
Before you install this update Microsoft now 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.Prerequisite:Based on your installation scenario, choose one of the following:
Install this update To install this update, use one of the following Windows and Microsoft release channels.
Windows UpdateBusinessCatalogServer Update Services
Available | Next Step |
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Yes | None. This update will be downloaded and installed automatically from Windows Update and Microsoft Update. |
Available | Next Step |
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Yes | None. This update will be downloaded and installed automatically from Windows Update for Business in accordance with configured policies. |
Available | Next Step |
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Yes | To get the standalone package for this update, go to the Microsoft Update Catalog website. |
Available | Next Step |
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Yes | This update will automatically sync with Windows Server Update Services (WSUS) if you configure Products and Classifications as follows:Product : Windows 10, version 1903 and laterClassification : Security Updates |
If you want to remove the LCU To 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 information For a list of the files that are provided in this update, download the file information for cumulative update 5041580.For a list of the files that are provided in the servicing stack update, download the file information for the SSU (KB5041579) - versions 19044.4769 and 19045.4769.