I have checked March 9, 2021—KB5000802 (OS Builds 19041.867 and 19042.867) Microsoft update history website, don’t see BSOD related known issue, only System and user certificates, Microsoft Japanese Input Method Editor (IME) related Known issues in this update.
https://support.microsoft.com/en-us/topic/march-9-2021-kb5000802-os-builds-19041-867-and-19042-867-63552d64-fe44-4132-8813-ef56d3626e14
And, this Cumulative Update is not pulled, we can get it from Windows Update or Microsoft Update Catalog.
Of course, my computer has installed this CU as some of your machines, haven’t see BSOD until now. If you worry about this KB, just wait and see, if there is any potential issue on March update, Microsoft will release follow-up update or notification.
If there is any problem occur on your machines, welcome to share with us.
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