{"id":"CVE-2018-8310","aliases":["EUVD-2018-19963","GHSA-r995-g428-fh4c"],"status":"published","title":"A tampering vulnerability exists when Microsoft Outlook does not properly handle specific...","description":"A tampering vulnerability exists when Microsoft Outlook does not properly handle specific attachment types when rendering HTML emails, aka \"Microsoft Office Tampering Vulnerability.\" This affects Microsoft Word, Microsoft Office.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.05882,"percentile":0.93264,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2018-07-11T00:00:00Z","modified":"2026-06-17T02:04:36Z","products":[{"vendor":"microsoft","product":"microsoft office"},{"vendor":"microsoft","product":"microsoft word"},{"vendor":"microsoft","product":"office"},{"vendor":"microsoft","product":"word"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8310","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/104615","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1041274","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-8310"},{"url":"https://github.com/advisories/GHSA-r995-g428-fh4c"}],"sources":{"cve":[{"id":"CVE-2018-8310","description":"A tampering vulnerability exists when Microsoft Outlook does not properly handle specific attachment types when rendering HTML emails, aka \"Microsoft Office Tampering Vulnerability.\" This affects Microsoft Word, Microsoft Office.","status":"published","published":"2018-07-11T00:00:00Z","modified":"2024-08-05T06:54:36.417Z","updated_at":"2026-11-02T14:35:04.540365Z"}],"euvd":[{"id":"EUVD-2018-19963","description":"A tampering vulnerability exists when Microsoft Outlook does not properly handle specific attachment types when rendering HTML emails, aka \"Microsoft Office Tampering Vulnerability.\" This affects Microsoft Word, Microsoft Office.","status":"published","published":"2018-07-11T00:00:00Z","modified":"2024-08-05T06:54:36Z","updated_at":"2026-11-03T02:40:03.169087Z"}],"ghsa":[{"id":"GHSA-r995-g428-fh4c","title":"A tampering vulnerability exists when Microsoft Outlook does not properly handle specific...","description":"A tampering vulnerability exists when Microsoft Outlook does not properly handle specific attachment types when rendering HTML emails, aka \"Microsoft Office Tampering Vulnerability.\" This affects Microsoft Word, Microsoft Office.","status":"published","published":"2022-05-13T01:20:47Z","modified":"2023-02-01T05:06:13Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T14:50:19.669171Z"}],"nvd":[{"id":"CVE-2018-8310","description":"A tampering vulnerability exists when Microsoft Outlook does not properly handle specific attachment types when rendering HTML emails, aka \"Microsoft Office Tampering Vulnerability.\" This affects Microsoft Word, Microsoft Office.","status":"published","published":"2018-07-11T00:29:02.087Z","modified":"2026-06-17T02:04:36.63Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:04:32.929986Z"}]}}