19 Apr, 2026

New Microsoft Defender “RedSun” zero-day PoC grants SYSTEM privileges

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. This exploit is for a local privilege escalation (LPE) flaw that grants SYSTEM privileges in Windows 10, Windows 11, and Windows Server on […]

3 mins read