---
id: CVE-2026-50656
title: Microsoft Defender Elevation of Privilege Vulnerability
summary: >-
  Microsoft is aware of an elevation of privilege in the Microsoft Malware
  Protection Engine in Microsoft Defender publicly referred to as
  "RoguePlanet ".
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:U/RC:C'
cvssSource: cna
cwe:
  - CWE-59
vendor: Microsoft
product: Microsoft Malware Protection Engine
affected:
  - malware_protection_engine >= 1.1.0.0 < 1.1.26060.3008
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-06-17T03:56:00.813025Z'
exploitAvailable: true
published: '2026-06-16'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T13:44:14.988Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-50656'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50656'
    label: Microsoft Defender Elevation of Privilege Vulnerability
tags:
  - cve.org
  - exploit-available
epss: 0.11362
epssPercentile: 0.95798
exploits:
  github: 4
  githubRepos:
    - 'https://github.com/0xBlackash/CVE-2026-50656'
    - 'https://github.com/g0thamRabb1t/CVE-2026-50656-rogueplanet-validation'
    - 'https://github.com/HORKimhab/CVE-2026-50656'
  checkedAt: '2026-09-24T14:44:56.021Z'
ingestedAt: '2026-09-24T14:44:21.406Z'
---

## Overview

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

## Affected

- `malware_protection_engine >= 1.1.0.0 < 1.1.26060.3008`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.