Microsoft Zero-Day Exploit Released: ShieldBreak Gives System Privileges

A hacker known as Nightmare Eclipse has released a new zero-day exploit called ShieldBreak, which can give system privileges on fully patched Windows systems, bypassing Microsoft's RoguePlanet patch. The exploit has been confirmed to work by other security researchers, and Microsoft is currently investigating the vulnerability.

Key Insights

ShieldBreak is a local privilege-escalation exploit that allows attackers to gain SYSTEM-level privileges. The exploit works on fully patched Windows 10, Windows 11, and Windows Server systems. Nightmare Eclipse has released 10 zero-day exploits since early April, with many of them targeting Microsoft products.