CVE-2026-50656

Vulnerabilities and Exploits

Microsoft Defender Elevation of Privilege Vulnerability: CVE-2026-50656

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MIcrosoft Defender ElevatIon of PrIvIlege VulnerabIlIty CVE-2026-50656

Introduction In modern operating systems, antivirus and protection engines form the most critical layer of system security. However, by design, these software components must operate with the highest possible system privileges (NT AUTHORITY\SYSTEM). This fundamental necessity turns security engines into a primary and highly lucrative target for cyber adversaries. The local elevation of privilege (EoP) vulnerability identified within Microsoft Defender, publicly dubbed “RoguePlanet” and tracked as CVE-2026-50656, directly

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Vulnerabilities and Exploits

Exploitation of Microsoft Defender Elevation of Privilege Vulnerability (CVE-2026-50656)

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Exploitation of Microsoft Defender Elevation of Privilege Vulnerability (CVE-2026-50656)

Introduction In modern operating systems, Endpoint Security components such as antivirus engines and EDR (Endpoint Detection and Response) agents operate close to the kernel layer to intercept malicious behavior. Within the Microsoft Windows ecosystem, Microsoft Defender serves as the native defense mechanism, inherently executing its tasks with the highest possible privilege level: NT AUTHORITY\SYSTEM. While this design is mandatory for system-wide remediation, any architectural or

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