{"id":"CVE-2026-78522","aliases":["EUVD-2026-73829","GHSA-v2c5-mm5m-5xw6"],"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 over a network.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/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":"2026-11-11","score":0.00922,"percentile":0.60771,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2026-09-08T17:18:39Z","modified":"2026-11-10T21:37:39Z","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-2026-78522","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78522"},{"url":"https://github.com/advisories/GHSA-v2c5-mm5m-5xw6"}],"sources":{"cve":[{"id":"CVE-2026-78522","title":"Microsoft Office Word Information Disclosure Vulnerability","description":"Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-09-08T17:18:39.458Z","modified":"2026-11-10T21:37:39.107Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/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":"2026-11-10T22:48:53.557052Z"}],"euvd":[{"id":"EUVD-2026-73829","description":"Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-09-08T17:18:39Z","modified":"2026-11-10T21:37:39Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/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-v2c5-mm5m-5xw6","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 over a network.","status":"published","published":"2026-09-08T18:33:27Z","modified":"2026-09-08T18:33:52Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T15:11:34.019342Z"}],"nvd":[{"id":"CVE-2026-78522","description":"Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.","status":"published","published":"2026-09-08T18:20:47.813Z","modified":"2026-09-08T20:49:52.02Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:12:45.264578Z"}]}}