{"id":"CVE-2026-110064","aliases":["EUVD-2026-122171","GHSA-xhvv-933c-63cf"],"status":"published","title":"Microsoft Office Word Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-14","score":0.00949,"percentile":0.61772,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122","CWE-197"],"published":"2026-11-10T18:21:04Z","modified":"2026-11-10T21:32:39Z","products":[{"vendor":"microsoft","product":"microsoft 365 apps for enterprise"},{"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"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-110064","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110064"},{"url":"https://github.com/advisories/GHSA-xhvv-933c-63cf"}],"sources":{"cve":[{"id":"CVE-2026-110064","title":"Microsoft Office Word Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T18:21:04.466Z","modified":"2026-11-13T18:09:48.887Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-122","CWE-197"],"updated_at":"2026-11-10T19:39:58.44836Z"}],"euvd":[{"id":"EUVD-2026-122171","description":"Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T18:21:04Z","modified":"2026-11-13T18:09:48Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T23:24:26.96779Z"}],"ghsa":[{"id":"GHSA-xhvv-933c-63cf","title":"Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute...","description":"Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T21:32:33Z","modified":"2026-11-10T21:32:39Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-122"],"updated_at":"2026-11-10T21:57:49.373692Z"}],"nvd":[{"id":"CVE-2026-110064","description":"Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T19:18:24.287Z","modified":"2026-11-10T21:18:18.86Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-122","CWE-197"],"updated_at":"2026-11-11T00:21:54.23974Z"}]}}