A patch from your device manufacturer - Free Download
This article will be updated as additional information becomes available. Please check back here regularly for updates and new FAQ. Microsoft has released several updates to help mitigate these vulnerabilities. We have also taken action to secure our cloud services. See the following sections for more details. Microsoft has yet not received any information to indicate that these vulnerabilities have been used to attack customers.
Microsoft is working closely with industry partners including chip makers, hardware OEMs, and app vendors to protect customers. To get all available protections, firmware microcode and software updates are required.
This includes microcode from device OEMs and, in some cases, updates to antivirus software. The following sections can help you identify and mitigate client environments that are affected by the vulnerabilities that are identified in Microsoft Security Advisory ADV We will continue to improve these mitigations against this class of vulnerabilities. Customers must take the following actions to help protect against the vulnerabilities:.
Customers should install all monthy Windows security updates to receive the benefit of all known protections against the vulnerabilities. This should be available through your OEM device manufacturer. For a list of available Surface device firmware microcode updates, see KB The following Group or MDM policy configurations settings disable preview builds and will not allow the Windows security updates.
To verify that you cannot receive the update, you can scan for available updates. After devices have received the monthly Windows security updates, the policy configuration settings can be reverted to their previous state disabling preview builds.
To help customers verify that protections are enabled, Microsoft has published a PowerShell script that customers can run on their systems.
I nstall and run the script by running the following commands. For more cloud guidance, see the Azure blog. Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly.
Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:.
Note By default, this update is enabled. No customer action is required to enable the fixes. We are providing the following registry information for completeness in the event that customers want to disable the security fixes related to CVE and CVE for Windows clients.
To enable the fix: Restart the computer for the changes to take effect. To disable Variant 2: To enable Variant 2: The microcode is delivered through a firmware update.
Customers should check with their CPU chipset and device manufacturers on availability of applicable firmware security updates for their specific device, including Intel's Microcode Revision Guidance. Addressing a hardware vulnerability through a software update presents significant challenges, and mitigations for older operating systems require extensive architectural changes. Updates for Microsoft Surface devices will be delivered to customers through Windows Update along with the updates for the Windows operating system.
If your device is not from Microsoft, apply firmware from the device manufacturer. Contact the OEM device manufacturer for more information. In February and March , Microsoft released added protection for some xbased systems. These mitigations will also be included in all future releases of Windows 10 for HoloLens. Security Only updates are not cumulative. We recommend installing these Security Only updates in the order of release.
In fact, it does not. Applying the February security updates on Windows client operating systems enables all three mitigations. Intel recently announced they have completed their validations and started to release microcode for newer CPU platforms. This issue has been resolved in KB Architecture Guidelines around Indirect Branch Control. These are available from the OEM firmware channel. The microcode update is also available directly from Catalog if it was not installed on the device prior to upgrading the OS.
For more information and download instructions, see KB For more information, see the following resources: For more information and to obtain the PowerShell script, see KB For more information about this vulnerability and recommended actions, please refer to the Security Advisory: We are not currently aware of any instances of BCBS in our software, but we are continuing to research this vulnerability class and will work with industry partners to release mitigations as required. Software developers should review the developer guidance that has been updated for BCBS at https: These new speculative execution side-channel vulnerabilities can be used to read the content of memory across a trusted boundary and, if exploited, can lead to information disclosure.
There are multiple vectors by which an attacker could trigger the vulnerabilities depending on the configured environment. For more information about this vulnerability and a detailed view of affected scenarios, including Microsoft's approach to mitigating L1TF please see the following resources:. Customers must take the following actions to help protect against the vulnerabilities: Contact the antivirus software vendor for compatibility information.
Apply all available Windows operating system updates, including the monthly Windows security updates. Apply the applicable firmware microcode update that is provided by the device manufacturer. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: Disable mitigation against Spectre Variant 2. When can I expect a fix to be released? Will I get one?
Where can I find Microsoft HoloLens operating system and firmware microcode updates? If I install the latest Security Only updates, am I protected from the vulnerabilities described? I've heard Intel has released microcode updates. Where can I find them? Some users may experience network connectivity issues or lose IP address settings after installing the March 13, Security Update KB I've heard AMD has released microcode updates.
Where can I find and install these updates for my system? I'm running Windows 10 April Update version Is there Intel microcode available for my device?
Where can I find it? Will Microsoft release mitigations for it? Where can I find more information about it and Windows support for it? For more information about this vulnerability and a detailed view of affected scenarios, including Microsoft's approach to mitigating L1TF please see the following resources: Did this solve your problem? Tell us what we can do to improve the article Submit.
Your feedback will help us improve the support experience. Bosna i Hercegovina - Hrvatski. Crna Gora - Srpski. Indonesia Bahasa - Bahasa. New Zealand - English. South Africa - English. United Kingdom - English. United States - English. Disable preview builds -or- Disable preview builds once next release is public. Install the PowerShell Module: Extract the contents to a local folder, for example C: Start PowerShell, then by using the previous example copy and run the following commands: True Windows OS support for branch target injection mitigation is present: True Windows OS support for branch target injection mitigation is enabled:
Update a driver for hardware that isn't working properly
United States - English. But those patches can't do anything if you refuse to install them. No information is available as of yet regarding Google WiFi. Crna Gora - Srpski. Software developers should review the developer guidance that has been updated for BCBS at https: Did this solve your problem? Patches for the computer-support hardware will appear as part of the general operating-system updates we discussed previously. Your device might need an update. MystikIncarnate - 1 year ago.
List of Firmware & Driver Updates for KRACK WPA2 Vulnerability
ASUS has new firmware now. To set Windows to install recommended updates To automatically get available driver updates for your hardware, set Windows to install recommended updates. We are not currently aware of any instances of BCBS in our software, but we are continuing to research this vulnerability class and will work with industry partners to release mitigations as required. Haven't seen them listed anywhere. Addressing a hardware vulnerability through a software update presents significant challenges, and mitigations for older operating systems require extensive architectural changes. When can I expect a fix to be released? We are currently working with computing device manufacturers to make these updates available. You must be logged on as an administrator to perform these steps.
Stop putting off your device updates—here's why