{"id":"CVE-2026-64917","aliases":["EUVD-2026-56720","GHSA-h3x5-jw7p-ff7v"],"status":"published","title":"Microsoft Office Word Information Disclosure Vulnerability","description":"Out-of-bounds 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":"2026-11-09","score":0.00541,"percentile":0.45778,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-08-11T17:06:45Z","modified":"2026-10-30T17:22:32Z","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 365 for mac"},{"vendor":"microsoft","product":"microsoft office ltsc 2021"},{"vendor":"microsoft","product":"microsoft office ltsc 2024"},{"vendor":"microsoft","product":"microsoft office ltsc for mac 2021"},{"vendor":"microsoft","product":"microsoft office ltsc for mac 2024"},{"vendor":"microsoft","product":"microsoft word 2016"},{"vendor":"microsoft","product":"microsoft_365"},{"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-2026-64917","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64917"},{"url":"https://github.com/advisories/GHSA-h3x5-jw7p-ff7v"}],"sources":{"cve":[{"id":"CVE-2026-64917","title":"Microsoft Office Word Information Disclosure Vulnerability","description":"Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-08-11T17:06:45.955Z","modified":"2026-10-30T17:22:32.084Z","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-125"],"updated_at":"2026-11-02T14:19:58.214427Z"}],"euvd":[{"id":"EUVD-2026-56720","description":"Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-08-11T17:06:45Z","modified":"2026-10-30T17:22:32Z","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":"2026-11-02T16:59:03.451007Z"}],"ghsa":[{"id":"GHSA-h3x5-jw7p-ff7v","title":"Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose...","description":"Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-08-11T18:31:34Z","modified":"2026-08-11T18:31:35Z","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-125"],"updated_at":"2026-11-02T15:10:19.387522Z"}],"nvd":[{"id":"CVE-2026-64917","description":"Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-08-11T17:18:53.05Z","modified":"2026-08-14T13:51:40.02Z","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-125"],"updated_at":"2026-11-02T14:12:36.880938Z"}]}}