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Product · Microsoft

Microsoft Malware Protection Engine

22 known vulnerabilities.

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  • High 7.8
    CVE-2026-69414 Public exploit

    Microsoft Defender Elevation of Privilege Vulnerability

    Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "ShieldBreak ".

  • High 7.8
    CVE-2026-50656 Public exploit EPSS 11%

    Microsoft Defender Elevation of Privilege Vulnerability

    Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "RoguePlanet ".

  • High 8.1
    CVE-2026-45584 Public exploit

    Microsoft Defender Remote Code Execution Vulnerability

    Heap-based buffer overflow in Microsoft Defender allows an unauthorized attacker to execute code over a network.

  • High 7.8
    CVE-2026-41091 Exploited Public exploit

    Microsoft Defender Elevation of Privilege Vulnerability

    Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to elevate privileges locally.

    KEV May 20, 2026