{"id":"CVE-2019-0817","aliases":["EUVD-2019-1570","GHSA-85h3-h3xc-gj4h"],"status":"published","title":"A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web Access (OWA) fails...","description":"A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web Access (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'. This CVE ID is unique from CVE-2019-0858.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/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":0.0229,"percentile":0.83345,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-19"],"published":"2019-04-09T20:16:25Z","modified":"2026-06-17T02:08:58Z","products":[{"vendor":"microsoft","product":"exchange_server"},{"vendor":"microsoft","product":"microsoft exchange server"},{"vendor":"microsoft","product":"microsoft exchange server 2013"},{"vendor":"microsoft","product":"microsoft exchange server 2016"},{"vendor":"microsoft","product":"microsoft exchange server 2019"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0817","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-0817"},{"url":"https://github.com/advisories/GHSA-85h3-h3xc-gj4h"}],"sources":{"cve":[{"id":"CVE-2019-0817","description":"A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web Access (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'. This CVE ID is unique from CVE-2019-0858.","status":"published","published":"2019-04-09T20:16:25Z","modified":"2024-08-04T17:58:59.015Z","updated_at":"2026-11-02T14:32:24.110857Z"}],"euvd":[{"id":"EUVD-2019-1570","description":"A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web Access (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'. This CVE ID is unique from CVE-2019-0858.","status":"published","published":"2019-04-09T20:16:25Z","modified":"2024-08-04T17:58:59Z","updated_at":"2026-11-03T03:07:00.558698Z"}],"ghsa":[{"id":"GHSA-85h3-h3xc-gj4h","title":"A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web Access (OWA) fails...","description":"A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web Access (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'. This CVE ID is unique from CVE-2019-0858.","status":"published","published":"2022-05-13T01:27:26Z","modified":"2023-02-01T05:07:54Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T14:50:37.729708Z"}],"nvd":[{"id":"CVE-2019-0817","description":"A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web Access (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'. This CVE ID is unique from CVE-2019-0858.","status":"published","published":"2019-04-09T21:29:01.3Z","modified":"2026-06-17T02:08:58.1Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/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-19"],"updated_at":"2026-11-02T14:05:11.426883Z"}]}}