{"id":"CVE-2026-110049","aliases":["EUVD-2026-122157","GHSA-pr9p-f623-fg8h"],"status":"published","title":"Microsoft Word Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/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":0.00542,"percentile":0.46122,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-11-10T18:20:56Z","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-2026-110049","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110049"},{"url":"https://github.com/advisories/GHSA-pr9p-f623-fg8h"}],"sources":{"cve":[{"id":"CVE-2026-110049","title":"Microsoft Word Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-11-10T18:20:56.954Z","modified":"2026-11-13T18:09:41.511Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/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"],"updated_at":"2026-11-10T19:39:57.855077Z"}],"euvd":[{"id":"EUVD-2026-122157","description":"Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-11-10T18:20:56Z","modified":"2026-11-13T18:09:41Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/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-pr9p-f623-fg8h","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 locally.","status":"published","published":"2026-11-10T21:32:31Z","modified":"2026-11-10T21:32:39Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/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-2026-110049","description":"Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-11-10T19:18:21.993Z","modified":"2026-11-10T21:18:16.96Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-122"],"updated_at":"2026-11-11T00:21:54.23974Z"}]}}