{"id":"CVE-2026-116717","aliases":["EUVD-2026-122511","GHSA-qc3m-7j8p-35c6"],"status":"published","title":"Microsoft Office Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft Office 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":0.0087,"percentile":0.59354,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122"],"published":"2026-11-10T18:24:16Z","modified":"2026-11-10T21:33:00Z","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-2026-116717","tags":["vendor-advisory","patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116717"},{"url":"https://github.com/advisories/GHSA-qc3m-7j8p-35c6"}],"sources":{"cve":[{"id":"CVE-2026-116717","title":"Microsoft Office Remote Code Execution Vulnerability","description":"Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T18:24:16.843Z","modified":"2026-11-13T18:12:58.23Z","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"],"updated_at":"2026-11-10T19:39:58.44836Z"}],"euvd":[{"id":"EUVD-2026-122511","description":"Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T18:24:16Z","modified":"2026-11-13T18:12:58Z","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":"2026-11-10T23:24:33.654843Z"}],"ghsa":[{"id":"GHSA-qc3m-7j8p-35c6","title":"Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code...","description":"Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T21:32:54Z","modified":"2026-11-10T21:33:00Z","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":"2026-11-10T21:57:51.137748Z"}],"nvd":[{"id":"CVE-2026-116717","description":"Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-11-10T19:19:14.773Z","modified":"2026-11-10T20:18:05.853Z","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"],"updated_at":"2026-11-10T22:21:32.984056Z"}]}}