Microsoft working on a fix for RoguePlanet, a flaw that grants full PC control

RoguePlanet (CVE-2026-50656) is a Microsoft Defender elevation-of-privilege vulnerability with a publicly available exploit that can allow an attacker to escalate from a standard user to NT AUTHORITY\SYSTEM; Microsoft has confirmed the issue and is preparing a security update. The published exploit relies on a race condition and shows variable success across systems, so users should install the upcoming patch when available, back up important data, avoid running untrusted executables, and not rely solely on Microsoft Defender.