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CVE-2026-50656

Microsoft Malware Protection EngineHIGH · CVSS 7.8No exploitation reported

What is CVE-2026-50656?

Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "RoguePlanet ". We are working to provide a high quality security update that addresses this vulnerability. We will provide information in this CVE when the update is available.

CVSS7.8 NVD 3.1
SeverityHIGH
ExploitationNo exploitation reported
EPSS<1% · P30
Triage statusNo Known Exploit
ActionPatch this week
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWECWE-59
NVD published2026-06-16
NVD last modified2026-06-17

Affected product

Microsoft Malware Protection Engine

Remediation Steps

  1. Monitor Microsoft Security Updates and advisories for RoguePlanet patch release
  2. Plan immediate deployment upon patch availability
  3. Ensure Microsoft Defender update mechanisms are functioning on all endpoints
  4. Test patch in non-production environment before broad deployment if possible
🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.

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