Microsoft Defender Zero-Day ‘RoguePlanet’ Hands Attackers SYSTEM Privileges on Fully Patched Windows PCs
A new Microsoft Defender zero-day called ‘RoguePlanet’ lets attackers gain SYSTEM privileges on fully patched Windows 10 and 11 machines. The race condition exploit published by researcher Nightmare Eclipse works against June 2026 Patch Tuesday systems — and there’s no fix yet.