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New Microsoft Defender “RedSun” zero-day PoC grants SYSTEM privileges
lowvulnerability2026-04-16T20:19:31+00:00source excerpt
vulnerabilityexploitationwindows
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A researcher known as "Chaotic Eclipse" has published a proof-of-concept exploit for a second Microsoft Defender zero-day, dubbed "RedSun," in the past two weeks, protesting how the company works with cybersecurity researchers.