{"id":"CVE-2019-1266","aliases":["EUVD-2019-9831","GHSA-vjmv-ghrr-vr6w"],"status":"published","title":"A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web App (OWA) fails to...","description":"A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web App (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01982,"percentile":0.80732,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2019-09-11T21:24:59Z","modified":"2026-06-17T02:28:16Z","products":[{"vendor":"microsoft","product":"exchange_server"},{"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-2019-1266","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-1266"},{"url":"https://github.com/advisories/GHSA-vjmv-ghrr-vr6w"}],"sources":{"cve":[{"id":"CVE-2019-1266","description":"A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web App (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'.","status":"published","published":"2019-09-11T21:24:59Z","modified":"2024-08-04T18:13:29.651Z","updated_at":"2026-11-02T14:20:25.661187Z"}],"euvd":[{"id":"EUVD-2019-9831","description":"A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web App (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'.","status":"published","published":"2019-09-11T21:24:59Z","modified":"2024-08-04T18:13:29Z","updated_at":"2026-11-03T03:06:58.838317Z"}],"ghsa":[{"id":"GHSA-vjmv-ghrr-vr6w","title":"A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web App (OWA) fails to...","description":"A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web App (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'.","status":"published","published":"2022-05-24T22:00:32Z","modified":"2023-01-30T05:04:34Z","updated_at":"2026-11-02T14:47:04.563666Z"}],"nvd":[{"id":"CVE-2019-1266","description":"A spoofing vulnerability exists in Microsoft Exchange Server when Outlook Web App (OWA) fails to properly handle web requests, aka 'Microsoft Exchange Spoofing Vulnerability'.","status":"published","published":"2019-09-11T22:15:17.023Z","modified":"2026-06-17T02:28:16.17Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:05:28.126831Z"}]}}