{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-50656: Microsoft Defender Elevation of Privilege Vulnerability","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-50656","status":"final","version":"1","initial_release_date":"2026-06-16T18:01:33.601Z","current_release_date":"2026-06-17T16:28:16.703Z","revision_history":[{"date":"2026-06-16T18:01:33.601Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"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.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-50656 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-50656"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-50656"},{"category":"external","summary":"Microsoft Defender Elevation of Privilege Vulnerability","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50656"}]},"product_tree":{"branches":[{"category":"vendor","name":"Microsoft","branches":[{"category":"product_name","name":"Microsoft Malware Protection Engine","branches":[{"category":"product_version","name":"-","product":{"name":"Microsoft Microsoft Malware Protection Engine -","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:microsoft:microsoft_malware_protection_engine:-:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-50656","title":"Microsoft Defender Elevation of Privilege Vulnerability","notes":[{"category":"description","text":"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.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"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","baseScore":7.8,"baseSeverity":"HIGH"},"products":["CSAFPID-1"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1"]}]}]}