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
98.0%
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Change log
Date of change | Description of changes |
---|---|
July 31, 2024 | Updated the “Remote Desktop Connectivity” known issue August 13, 2024 |
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End of support information
Microsoft will not be offering an Extended Security Update (ESU) program for Windows 8.1. Continuing to use Windows 8.1 after January 10, 2023 may increase an organization’s exposure to security risks or impact its ability to meet compliance obligations. For more information, see Windows 8.1 support will end on January 10, 2023.We recommend upgrading to a later version of Windows. For more information, see Upgrade to a later version of Windows.
We recommend upgrading to a later version of Windows Server. For more information, see Overview of Windows Server upgrades.
Learn more about this cumulative security update, including improvements, any known issues, and how to get the update.
Note For information about the various types of Windows updates, such as critical, security, driver, service packs, and so on, see Description of the standard terminology that is used to describe Microsoft software updates. To view other notes and messages, see the Windows 8.1 and Windows Server 2012 R2 update history home page.
This cumulative security update includes improvements that are part of update KB5039294 (released June 11, 2024). The following is a summary of the key issues that this update addresses. The bold text within the brackets indicates the item or area of the change we are documenting.
Symptom | Workaround |
---|---|
After installing this update, you might see a BitLocker recovery screen upon starting up your device. This screen does not commonly appear after a Windows update. You are more likely to face this issue if you have the Device Encryption option enabled in Settings under Privacy & Security >Device encryption. Because of this issue, you might be prompted to enter the recovery key from your Microsoft account to unlock your drive. | This issue is resolved in update KB5041828. |
After installing this update, Windows Servers might affect Remote Desktop Connectivity across an organization. This issue might occur if legacy protocol (Remote Procedure Call over HTTP) is used in Remote Desktop Gateway. Resulting from this, remote desktop connections might be interrupted.This issue might occur intermittently, such as repeating every 30 minutes. At this interval, logon sessions are lost and users will need to reconnect to the server. IT administrators can track this as a termination of the TSGateway service which becomes unresponsive with exception code 0xc0000005. | To work around this issue, use one of the following options:Option 1: Disallow connections over pipe, and port \pipe\RpcProxy\3388 through the RD Gateway.This process will require the use of connection applications, such as firewall software. Consult the documentation for your connection and firewall software for guidance on disallowing and porting connections.Option 2: Edit the registry of client devices and set the value of RDGClientTransport to 0x00000000 (0)In Windows Registry Editor, navigate to the following registry location:HKEY_CURRENT_USER\Software\Microsoft\Terminal Server ClientFindRDGClientTransportand set its value to0(zero). This changes the value ofRDGClientTransportto0x00000000 (0).Next step: We are working on a resolution and will provide an update in an upcoming release. |
For the current status of any past Known Issue, see the Windows Server 2012 R2 Known Issues page. |
Before installing this updateWe strongly recommend that you install the latest servicing stack update (SSU) for your operating system before you install the latest Monthly Rollup. SSUs improve the reliability of the update process to mitigate potential issues while installing the Monthly Rollup and applying Microsoft security fixes. For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.If you use Windows Update, the latest SSU (KB5040569) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog.Language packsIf you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Learn about adding a language pack to Windows.Install this updateTo install this update, use one of the following release channels.
Windows UpdateUpdate CatalogServer Update Services
Available | Next step |
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Yes | This update will be downloaded and installed automatically from Windows Update. |
Available | Next step |
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Yes | To get the standalone package for this update, go to the Microsoft Update Catalog website.To download updates from the Update Catalog, see Steps to download updates from the Windows Update Catalog. |
Available | Next step |
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Yes | This update will automatically sync if you configureProducts and Classifications as follows: |
For a list of the files that are provided in this update, download the file information for update KB5040456.