Nightmare Eclipse

Pierluigi Paganini June 11, 2026
Chaotic Eclipse Strikes Again: New Zero-Day Unlocks BitLocker in Four Hours of Research

GreatXML bypasses BitLocker via Defender offline scan artifacts, giving SYSTEM shell in Recovery Mode. No patch exists. Any machine that ran an offline scan is vulnerable. On June 10, security researcher Chaotic Eclipse (aka Nightmare Eclipse) published a new working exploit dubbed GreatXML that bypasses BitLocker and opens a command shell with full SYSTEM privileges […]