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TechRadar
TechRadar
Sead Fadilpašić

This Microsoft Defender zero-day could give hackers unprecedented access to your system

A computer being guarded by cybersecurity.
  • Chaotic Eclipse drops seventh Windows zero‑day, “RoguePlanet,” hours after Patch Tuesday
  • Race‑condition exploit grants SYSTEM privileges; PoC confirmed viable by ThreatLocker
  • Researcher continues public disclosures amid feud with Microsoft, following BlueHammer, RedSun, UnDefend, YellowKey, GreenPlasma, and MiniPlasma

Chaotic Eclipse, the mysterious security researcher with a Microsoft grudge, disclosed another zero-day vulnerability in a fully patched Windows 11 device, just hours after Microsoft released its recent record June Patch Tuesday cumulative update.

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