{"id":"CVE-2021-40456","published":"2021-10-13T00:26:54Z","modified":"2024-08-04T02:44:10Z","title":"Windows AD FS Security Feature Bypass Vulnerability","vendor":"Microsoft","product":"Windows Server 2019","tier":"tail","description":{"text":"Windows AD FS Security Feature Bypass Vulnerability","provenance":"source","from":"CVE.org"},"cvss":{"score":5.3,"severity":"MEDIUM","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.02341,"percentile":0.83569,"provenance":"source"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-40456","tags":["x_refsource_MISC"]}],"priority":{"score":20.4,"factors":[{"name":"EPSS percentile","points":16.71},{"name":"CVSS severity","points":3.71}]},"vendorSlug":"microsoft","affectedVersions":[{"vendor":"Microsoft","product":"Windows Server 2019","versions":[">= 10.0.0, < 10.0.17763.2237"]},{"vendor":"Microsoft","product":"Windows Server 2019 (Server Core installation)","versions":[">= 10.0.0, < 10.0.17763.2237"]},{"vendor":"Microsoft","product":"Windows Server 2022","versions":[">= 10.0.0, < 10.0.20348.288"]},{"vendor":"Microsoft","product":"Windows Server version 2004","versions":[">= 10.0.0, < 10.0.19041.1288"]},{"vendor":"Microsoft","product":"Windows Server version 20H2","versions":[">= 10.0.0, < 10.0.19042.1288"]}],"euvd":{"id":"EUVD-2021-27633","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-class-microsoft-windows-cwe-863"}}