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Microsoft Defender for Endpoint logic bug triggers false Dell BIOS outdated alerts

Security Tool/Service
First reported
Last updated
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H score 11
1 unique sources, 1 articles

Summary

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Microsoft Defender for Endpoint is being fixed after a logic bug caused false outdated BIOS alerts on Dell devices, creating unnecessary update prompts across affected organizations. The issue affects some users receiving bogus vulnerability notices for Dell BIOS firmware. Microsoft has already developed a fix and is preparing deployment.

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Timeline

  1. 02.10.2025 17:20 2 articles · 8mo ago

    Microsoft identifies Defender for Endpoint BIOS alert bug affecting Dell devices

    Initial Disclosure

    Microsoft identified a code bug in Microsoft Defender for Endpoint logic that fetches vulnerabilities for Dell devices, and the issue is causing some users to receive alerts that Dell device BIOS versions are outdated. Microsoft has already developed a fix and is preparing it for deployment, while the impact described includes affected organizations and users receiving these false update prompts.

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