{"id":"CVE-2026-100208","aliases":["EUVD-2026-87317","GHSA-757q-589w-v977"],"status":"published","title":"Microsoft Office Outlook Remote Code Execution Vulnerability","description":"Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/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":"2026-11-11","score":0.00451,"percentile":0.39619,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122","CWE-190"],"published":"2026-09-25T19:39:27Z","modified":"2026-11-10T21:38:39Z","products":[{"vendor":"microsoft","product":"365_apps"},{"vendor":"microsoft","product":"microsoft 365 apps for enterprise"},{"vendor":"microsoft","product":"microsoft office ltsc 2021"},{"vendor":"microsoft","product":"microsoft office ltsc 2024"},{"vendor":"microsoft","product":"office_2021"},{"vendor":"microsoft","product":"office_2024"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-100208","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100208"},{"url":"https://github.com/advisories/GHSA-757q-589w-v977"}],"sources":{"cve":[{"id":"CVE-2026-100208","title":"Microsoft Office Outlook Remote Code Execution Vulnerability","description":"Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-25T19:39:27.315Z","modified":"2026-11-10T21:38:39.737Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-190","CWE-122"],"updated_at":"2026-11-10T22:48:49.825884Z"}],"euvd":[{"id":"EUVD-2026-87317","description":"Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-25T19:39:27Z","modified":"2026-11-10T21:38:39Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-10T23:24:18.784503Z"}],"ghsa":[{"id":"GHSA-757q-589w-v977","title":"Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to...","description":"Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-25T21:33:02Z","modified":"2026-10-28T21:30:52Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-122","CWE-190"],"updated_at":"2026-11-02T15:14:36.375319Z"}],"nvd":[{"id":"CVE-2026-100208","description":"Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.","status":"published","published":"2026-09-25T20:17:04.76Z","modified":"2026-10-28T21:16:54.043Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-122","CWE-190"],"updated_at":"2026-11-02T14:12:51.721923Z"}]}}