Microsoft Confirms Logic Error in Defender for Endpoint Flagging Outdated Dell BIOS
Microsoft has confirmed a logic error in its enterprise-grade security platform, Microsoft Defender for Endpoint, which is falsely flagging outdated BIOS on Dell devices. The issue, affecting Dell computers globally, has been acknowledged with a service alert issued by Microsoft.
The bug, caused by a logic flaw in Microsoft Defender for Endpoint's vulnerability fetching process, impacted customers using Dell devices with certain BIOS updates. Microsoft 365 has not specified the exact regional impact, but users worldwide have been affected. The issue persisted until Windows updates released in May 2025 resolved it.
Microsoft Defender for Endpoint, which supports Windows, macOS, Linux, Android, and iOS devices, is designed for hybrid and remote workforces. Despite the fix being ready, it has not been deployed yet, leaving users awaiting more details from Microsoft about affected regions and customer impact.
Microsoft Defender for Endpoint, a unified security solution, has been affected by a logic error causing false BIOS outdated warnings on Dell devices. The bug, now resolved, impacted users globally. Microsoft has confirmed the issue and is expected to provide further details soon.
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