{"id":"CVE-2026-83951","aliases":["EUVD-2026-73890","GHSA-9985-6wr4-mf59"],"status":"published","title":"Microsoft Office Word Information Disclosure Vulnerability","description":"Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00541,"percentile":0.45997,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-126"],"published":"2026-09-08T17:19:13Z","modified":"2026-11-10T21:38:15Z","products":[{"vendor":"microsoft","product":"365_apps"},{"vendor":"microsoft","product":"microsoft 365 apps for enterprise"},{"vendor":"microsoft","product":"microsoft office 2019"},{"vendor":"microsoft","product":"microsoft office ltsc 2021"},{"vendor":"microsoft","product":"microsoft office ltsc 2024"},{"vendor":"microsoft","product":"microsoft word 2016"},{"vendor":"microsoft","product":"office_2019"},{"vendor":"microsoft","product":"office_2021"},{"vendor":"microsoft","product":"office_2024"},{"vendor":"microsoft","product":"word"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83951","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-83951"},{"url":"https://github.com/advisories/GHSA-9985-6wr4-mf59"}],"sources":{"cve":[{"id":"CVE-2026-83951","title":"Microsoft Office Word Information Disclosure Vulnerability","description":"Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-09-08T17:19:13.588Z","modified":"2026-11-10T21:38:15.335Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium","assessor":"cna"}],"cwes":["CWE-126"],"updated_at":"2026-11-10T22:48:54.14451Z"}],"euvd":[{"id":"EUVD-2026-73890","description":"Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-09-08T17:19:13Z","modified":"2026-11-10T21:38:15Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C","level":"medium"}],"updated_at":"2026-11-10T23:24:19.311812Z"}],"ghsa":[{"id":"GHSA-9985-6wr4-mf59","title":"Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information...","description":"Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-09-08T18:33:35Z","modified":"2026-09-08T18:34:08Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T15:11:34.690977Z"}],"nvd":[{"id":"CVE-2026-83951","description":"Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-09-08T18:21:05.4Z","modified":"2026-09-08T20:43:42.16Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-126"],"updated_at":"2026-11-02T14:12:45.264578Z"}]}}