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

·Source: BleepingComputer

Updated:

Executive Summary

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. [...]

Analysis

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. [...]
Source Attribution

Originally published by BleepingComputer on Apr 16, 2026.

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