{"id":"CVE-2026-55142","aliases":["EUVD-2026-44212","GHSA-vm6w-v59c-562f"],"status":"published","title":"Microsoft Word Information Disclosure Vulnerability","description":"Numeric truncation error 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":0.00595,"percentile":0.4872,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-197"],"published":"2026-07-14T17:09:01Z","modified":"2026-11-01T17:36:32Z","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 sharepoint enterprise server 2016"},{"vendor":"microsoft","product":"microsoft sharepoint server 2019"},{"vendor":"microsoft","product":"microsoft sharepoint server subscription edition"},{"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":"sharepoint_server"},{"vendor":"microsoft","product":"word"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55142","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55142"},{"url":"https://github.com/advisories/GHSA-vm6w-v59c-562f"}],"sources":{"cve":[{"id":"CVE-2026-55142","title":"Microsoft Word Information Disclosure Vulnerability","description":"Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-07-14T17:09:01.202Z","modified":"2026-11-01T17:36:32.939Z","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-197"],"updated_at":"2026-11-02T14:20:12.260247Z"}],"euvd":[{"id":"EUVD-2026-44212","description":"Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-07-14T17:09:01Z","modified":"2026-11-01T17:36:32Z","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":"2026-11-02T16:58:47.432726Z"}],"ghsa":[{"id":"GHSA-vm6w-v59c-562f","title":"Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to disclose...","description":"Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-07-14T18:32:36Z","modified":"2026-07-14T18:32:42Z","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-197"],"updated_at":"2026-11-02T15:09:30.715875Z"}],"nvd":[{"id":"CVE-2026-55142","description":"Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to disclose information locally.","status":"published","published":"2026-07-14T18:18:21.273Z","modified":"2026-07-16T13:40:07.76Z","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-197"],"updated_at":"2026-11-02T14:12:29.489525Z"}]}}