Microsoft Malware Protection Engine

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• High 8.8
  CVE-2026-122194

  Microsoft Defender Remote Code Execution Vulnerability

  Null pointer dereference in Microsoft Defender allows an unauthorized attacker to execute code over a network.

  Microsoft Microsoft Malware Protection Engine
  Nov 10, 2026
• 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 ".

  Microsoft Microsoft Malware Protection Engine
  Aug 14, 2026
• High 7.8
  CVE-2026-55012

  Microsoft Defender Remote Code Execution Vulnerability

  Integer overflow or wraparound in Microsoft Defender allows an unauthorized attacker to execute code locally.

  Microsoft Microsoft Malware Protection Engine
  Jul 14, 2026
• High 7.8
  CVE-2026-55011

  Microsoft Defender Remote Code Execution Vulnerability

  Integer underflow (wrap or wraparound) in Microsoft Defender allows an unauthorized attacker to execute code locally.

  Microsoft Microsoft Malware Protection Engine
  Jul 14, 2026
• 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 ".

  Microsoft Microsoft Malware Protection Engine
  Jun 16, 2026
• 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.

  Microsoft Microsoft Malware Protection Engine
  May 20, 2026
• 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.

  Microsoft Microsoft Malware Protection Engine
  May 20, 2026

  KEV May 20, 2026
• High 7.5
  CVE-2023-24860

  Microsoft Defender Denial of Service Vulnerability

  Microsoft Defender Denial of Service Vulnerability

  Microsoft Microsoft Malware Protection Engine
  Apr 11, 2023
• High 7.1
  CVE-2022-37971

  Microsoft Windows Defender Elevation of Privilege Vulnerability

  Microsoft Windows Defender Elevation of Privilege Vulnerability

  Microsoft Microsoft Malware Protection Engine
  Oct 11, 2022
• High 7.8
  CVE-2021-42298

  Microsoft Defender Remote Code Execution Vulnerability

  Microsoft Defender Remote Code Execution Vulnerability

  Microsoft Microsoft Malware Protection Engine
  Nov 10, 2021
• High 7.8
  CVE-2021-34471

  Microsoft Defender Elevation of Privilege Vulnerability

  Microsoft Defender Elevation of Privilege Vulnerability

  Microsoft Microsoft Malware Protection Engine
  Aug 12, 2021
• High 7.8
  CVE-2021-34464

  Microsoft Defender Remote Code Execution Vulnerability

  Microsoft Defender Remote Code Execution Vulnerability

  Microsoft Microsoft Malware Protection Engine
  Jul 16, 2021
• High 7.8
  CVE-2021-34522

  Microsoft Defender Remote Code Execution Vulnerability

  Microsoft Defender Remote Code Execution Vulnerability

  Microsoft Microsoft Malware Protection Engine
  Jul 14, 2021
• High 7.8
  CVE-2021-31985

  Microsoft Defender Remote Code Execution Vulnerability

  Microsoft Defender Remote Code Execution Vulnerability

  Microsoft Microsoft Malware Protection Engine
  Jun 8, 2021