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.

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

[{"vendor":"Microsoft","product":"Microsoft Malware Protection Engine","versions":[{"version":"-","status":"affected"}]}]

[{"vendor":"Microsoft","product":"Microsoft Malware Protection Engine","versions":[{"version":"1.1.0.0","lessThan":"1.1.26060.3008","versionType":"custom","status":"affected"}]}]

AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

OR
          *cpe:2.3:a:microsoft:malware_protection_engine:-:*:*:*:*:*:*:*

CISA-ADP: https://github.com/MSNightmare/RoguePlanet Types: Product

Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50656 Types: Vendor Advisory

{"timestamp":"2026-06-16T18:39:17.896626Z","id":"CVE-2026-50656","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

{"timestamp":"2026-06-16T00:00:00+00:00","id":"CVE-2026-50656","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

{"timestamp":"2026-06-16T18:39:17.896626Z","id":"CVE-2026-50656","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

[{"vendor":"Microsoft","product":"Microsoft Malware Protection Engine","versions":[{"version":"-","status":"affected"}]}]

https://github.com/MSNightmare/RoguePlanet

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.

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-59

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50656