{"id":"CVE-2020-1086","title":"An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory","summary":"An elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context.\nAn attacker could ex…","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","vendor":"microsoft","product":"windows_10","affected":["windows_10","windows_10 = 1607","windows_10 = 1709","windows_10 = 1803","windows_10 = 1809","windows_10 = 1903","windows_10 = 1909","windows_server_2016","windows_server_2019","windows_server_2019 = 1903","windows_server_2019 = 1909"],"published":"2020-05-21","updated":"2026-08-19","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2020-1086","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1086","label":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1086","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00833,"epssPercentile":0.55664,"ingestedAt":"2026-08-19T17:42:37.651Z","slug":"CVE-2020-1086","body":"## Overview\n\nAn elevation of privilege vulnerability exists when the Windows Runtime improperly handles objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in an elevated context.\nAn attacker could exploit this vulnerability by running a specially crafted application on the victim system.\nThe update addresses the vulnerability by correcting the way the Windows Runtime handles objects in memory.\n\n## Affected\n\n- `windows_10`\n- `windows_10 = 1607`\n- `windows_10 = 1709`\n- `windows_10 = 1803`\n- `windows_10 = 1809`\n- `windows_10 = 1903`\n- `windows_10 = 1909`\n- `windows_server_2016`\n- `windows_server_2019`\n- `windows_server_2019 = 1903`\n- `windows_server_2019 = 1909`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}