Microsoft Defender for Endpoint Users Hit by Persistent False BIOS Alerts
Microsoft Defender for Endpoint users are facing persistent false alarms about outdated BIOS versions, particularly on Dell devices. The bug, identified as DZ1163521, is causing unnecessary alerts and confusion, despite the BIOS being up-to-date.
Microsoft has acknowledged the issue, stemming from a code bug within the Microsoft Defender for Endpoint service that incorrectly interprets BIOS version data. Until a fix is deployed, administrators must manually verify the BIOS status of flagged Dell devices to distinguish false positives from genuine threats.
The exact release date for the patch is yet to be specified. However, Microsoft has developed a solution and is preparing to deploy it to the affected environment. Organizations using Microsoft Defender for Endpoint to monitor Dell hardware should monitor the Microsoft service health dashboard for the latest information on the fix rollout.
The false positive BIOS alerts are causing unnecessary administrative overhead for organizations relying on Microsoft Defender for Endpoint for vulnerability management. Microsoft is actively working on a resolution, and users are advised to keep an eye on the service health dashboard for updates on the fix rollout for Microsoft Defender for Endpoint.
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