{"id":"CVE-2020-1111","title":"An elevation of privilege vulnerability exists when Windows improperly handles calls to Clipboard Service","summary":"An elevation of privilege vulnerability exists when Windows improperly handles calls to Clipboard Service. An attacker who successfully exploited this vulnerability could run arbitrary code in the security context of the local system. An…","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 = 1809","windows_10 = 1903","windows_10 = 1909","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-2020-1111","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1111","label":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1111","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00944,"epssPercentile":0.58999,"ingestedAt":"2026-08-19T17:42:38.359Z","slug":"CVE-2020-1111","body":"## Overview\n\nAn elevation of privilege vulnerability exists when Windows improperly handles calls to Clipboard Service. An attacker who successfully exploited this vulnerability could run arbitrary code in the security context of the local system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\nTo exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control over an affected system.\nThe update addresses the vulnerability by correcting how Windows handles calls to Clipboard Service.\n\n## Affected\n\n- `windows_10 = 1809`\n- `windows_10 = 1903`\n- `windows_10 = 1909`\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":[]}