{"cve":"CVE-2015-1638","nvd":{"published":"2015-04-14T20:59:02.310","modified":"2026-06-17T00:22:44.770","status":"Modified","description":"Microsoft Active Directory Federation Services (AD FS) 3.0 on Windows Server 2012 R2 does not properly handle logoff actions, which allows remote attackers to bypass intended access restrictions by leveraging an unattended workstation, aka \"Active Directory Federation Services Information Disclosure Vulnerability.\"","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-264"],"references":["http://www.securitytracker.com/id/1032115","https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-040","http://www.securitytracker.com/id/1032115","https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-040"],"products":["microsoft:windows_server_2012"],"source":"nvd","synced_at":"2026-10-19T20:35:35.528235705+00:00"},"epss":{"cve":"CVE-2015-1638","score":0.12718,"percentile":0.96268,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}