{"id":"EUVD-2026-99750","revision":"1df8a201ce084f90a87e5221daa3bc05","records":[{"revision":"1df8a201ce084f90a87e5221daa3bc05","observedAt":"2026-10-28T10:37:49.907+00:00","statement":{"source":"euvd","id":"EUVD-2026-99750","aliases":["CVE-2026-96222","GHSA-vrv5-2jg9-4mmr"],"title":"Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.","description":"Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C","score":7.4,"severity":null}],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96222"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-99750","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 13, 2026, 7:00:31 PM","dateUpdated":"Oct 27, 2026, 9:30:17 PM"},"relatedAdvisories":[{"id":"RHSA-2026:86594","title":"Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-58280","CVE-2026-66822","CVE-2026-69651","CVE-2026-70159","CVE-2026-70175","CVE-2026-70179","CVE-2026-70181","CVE-2026-70183","CVE-2026-70186","CVE-2026-70188","CVE-2026-70196","CVE-2026-88092","CVE-2026-92707","CVE-2026-96222","CVE-2026-96225","CVE-2026-96230","CVE-2026-96231","CVE-2026-96233","CVE-2026-96236","CVE-2026-96237","CVE-2026-96238"]},{"id":"RHSA-2026:86169","title":"Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-58280","CVE-2026-66822","CVE-2026-69651","CVE-2026-70159","CVE-2026-70175","CVE-2026-70179","CVE-2026-70181","CVE-2026-70183","CVE-2026-70186","CVE-2026-70188","CVE-2026-70196","CVE-2026-88092","CVE-2026-92707","CVE-2026-96222","CVE-2026-96225","CVE-2026-96230","CVE-2026-96231","CVE-2026-96233","CVE-2026-96236","CVE-2026-96237","CVE-2026-96238"]},{"id":"RHSA-2026:88474","title":"Red Hat Security Advisory: .NET 8.0 security update","vulnerabilityIds":["CVE-2026-58280","CVE-2026-58649","CVE-2026-66822","CVE-2026-69651","CVE-2026-70159","CVE-2026-70175","CVE-2026-70179","CVE-2026-70181","CVE-2026-70183","CVE-2026-70186","CVE-2026-70188","CVE-2026-70196","CVE-2026-88092","CVE-2026-92707","CVE-2026-96222","CVE-2026-96225","CVE-2026-96230","CVE-2026-96231","CVE-2026-96233","CVE-2026-96236","CVE-2026-96237","CVE-2026-96238"]},{"id":"RHSA-2026:88425","title":"Red Hat Security Advisory: .NET 8.0 security update","vulnerabilityIds":["CVE-2026-58280","CVE-2026-58649","CVE-2026-66822","CVE-2026-69651","CVE-2026-70159","CVE-2026-70175","CVE-2026-70179","CVE-2026-70181","CVE-2026-70183","CVE-2026-70186","CVE-2026-70188","CVE-2026-70196","CVE-2026-88092","CVE-2026-92707","CVE-2026-96222","CVE-2026-96225","CVE-2026-96230","CVE-2026-96231","CVE-2026-96233","CVE-2026-96236","CVE-2026-96237","CVE-2026-96238"]},{"id":"RHSA-2026:86168","title":"Red Hat Security Advisory: .NET 8.0 security, bug fix, and enhancement update","vulnerabilityIds":["CVE-2026-58280","CVE-2026-66822","CVE-2026-69651","CVE-2026-70159","CVE-2026-70175","CVE-2026-70179","CVE-2026-70181","CVE-2026-70183","CVE-2026-70186","CVE-2026-70188","CVE-2026-70196","CVE-2026-88092","CVE-2026-92707","CVE-2026-96222","CVE-2026-96225","CVE-2026-96230","CVE-2026-96231","CVE-2026-96233","CVE-2026-96236","CVE-2026-96237","CVE-2026-96238"]},{"id":"RHSA-2026:88422","title":"Red Hat Security Advisory: .NET 8.0 security update","vulnerabilityIds":["CVE-2026-58280","CVE-2026-58649","CVE-2026-66822","CVE-2026-69651","CVE-2026-70159","CVE-2026-70175","CVE-2026-70179","CVE-2026-70181","CVE-2026-70183","CVE-2026-70186","CVE-2026-70188","CVE-2026-70196","CVE-2026-88092","CVE-2026-92707","CVE-2026-96222","CVE-2026-96225","CVE-2026-96230","CVE-2026-96231","CVE-2026-96233","CVE-2026-96236","CVE-2026-96237","CVE-2026-96238"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-99750","identifiers":["EUVD-2026-99750","CVE-2026-96222","GHSA-vrv5-2jg9-4mmr"]},"retained":false,"historicalAffected":[]}],"coverage":[]}