{"id":"CVE-2020-1113","title":"A security feature bypass vulnerability exists in Microsoft Windows when the Task Scheduler service fails to properly verify client connections over RPC","summary":"A security feature bypass vulnerability exists in Microsoft Windows when the Task Scheduler service fails to properly verify client connections over RPC. An attacker who successfully exploited this vulnerability could run arbitrary code …","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","cwe":["CWE-295"],"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_7","windows_8.1","windows_rt_8.1","windows_server_2008","windows_server_2012","windows_server_2012 = r2","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-2020-1113","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1113","label":"secure@microsoft.com"},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1113","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.06111,"epssPercentile":0.93109,"ingestedAt":"2026-08-19T17:42:38.432Z","slug":"CVE-2020-1113","body":"## Overview\n\nA security feature bypass vulnerability exists in Microsoft Windows when the Task Scheduler service fails to properly verify client connections over RPC. An attacker who successfully exploited this vulnerability could run arbitrary code as an administrator. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.\nTo exploit this vulnerability, a man-in-the-middle attacker would need to send a specially crafted request to a vulnerable system.\nThe security update addresses the vulnerability by correcting how the Task Scheduler service validates connections.\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_7`\n- `windows_8.1`\n- `windows_rt_8.1`\n- `windows_server_2008`\n- `windows_server_2012`\n- `windows_server_2012 = r2`\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":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.2,"likelihood":1.2,"exploitation":0,"ransomware":0},"changes":[]}