thehackernews.com 22 Sept 2026, 16:14 UTC

BigDiskBuster Zero Day Blocks Microsoft Defender Updates, PoC Shows

BigDiskBuster Zero Day Blocks Microsoft Defender Updates, PoC Shows
CyberSIXT Evidence Panel Source marked as original reporting

A researcher has released a proof of concept (PoC) for a zero-day vulnerability known as BigDiskBuster, which prevents Microsoft Defender updates. The issue, detailed in a report on cybersecurity, emphasizes growing concerns regarding endpoint security and the effectiveness of existing protective measures against such vulnerabilities. This situation highlights the urgent need for companies to enhance their cybersecurity protocols and remain vigilant against emerging threats.

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Article by CyberSIXT

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