{"id":"CVE-2018-8159","aliases":["EUVD-2018-19830","GHSA-f9g9-xmqv-vpcg"],"status":"published","title":"An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA)...","description":"An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka \"Microsoft Exchange Elevation of Privilege Vulnerability.\" This affects Microsoft Exchange Server.","severity":{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03512,"percentile":0.89285,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2018-05-09T19:00:00Z","modified":"2026-06-17T02:04:22Z","products":[{"vendor":"microsoft","product":"exchange_server"},{"vendor":"microsoft","product":"microsoft exchange server"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8159","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/104056","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1040850","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-8159"},{"url":"https://github.com/advisories/GHSA-f9g9-xmqv-vpcg"}],"sources":{"cve":[{"id":"CVE-2018-8159","description":"An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka \"Microsoft Exchange Elevation of Privilege Vulnerability.\" This affects Microsoft Exchange Server.","status":"published","published":"2018-05-09T19:00:00Z","modified":"2024-08-05T06:46:13.371Z","updated_at":"2026-11-02T14:35:04.172099Z"}],"euvd":[{"id":"EUVD-2018-19830","description":"An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka \"Microsoft Exchange Elevation of Privilege Vulnerability.\" This affects Microsoft Exchange Server.","status":"published","published":"2018-05-09T19:00:00Z","modified":"2024-08-05T06:46:13Z","updated_at":"2026-11-03T02:40:04.215722Z"}],"ghsa":[{"id":"GHSA-f9g9-xmqv-vpcg","title":"An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA)...","description":"An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka \"Microsoft Exchange Elevation of Privilege Vulnerability.\" This affects Microsoft Exchange Server.","status":"published","published":"2022-05-13T01:53:32Z","modified":"2023-02-02T05:02:21Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:51:25.546182Z"}],"nvd":[{"id":"CVE-2018-8159","description":"An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka \"Microsoft Exchange Elevation of Privilege Vulnerability.\" This affects Microsoft Exchange Server.","status":"published","published":"2018-05-09T19:29:02.497Z","modified":"2026-06-17T02:04:22.28Z","cvss":[{"version":"3.0","score":5.4,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:04:26.098615Z"}]}}