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Three Microsoft Defender Zero-Days Actively Exploited; Two Still Unpatched

🗓️ 17 Apr 2026 13:21:00Reported by The Hacker NewsType 
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🔗 thehackernews.com👁 16 Views

Three Microsoft Defender zero-days are exploited; BlueHammer patched, RedSun and UnDefend unfixed.

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14 May 2026 09:15Current
6.4Medium risk
Vulners AI Score6.4
CVSS 3.17.8
EPSS0.06749
SSVC
16