{"id":"CVE-2026-40361","aliases":["EUVD-2026-29643","GHSA-vcq9-67c7-g6vr"],"status":"published","title":"Microsoft Outlook and Word Remote Code Execution Vulnerability","description":"Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.","severity":{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00605,"percentile":0.49271,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2026-05-12T16:59:18Z","modified":"2026-10-26T18:10:00Z","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 office ltsc for mac 2021"},{"vendor":"microsoft","product":"microsoft office ltsc for mac 2024"},{"vendor":"microsoft","product":"microsoft word 2016"},{"vendor":"microsoft","product":"office"},{"vendor":"microsoft","product":"office_long_term_servicing_channel"},{"vendor":"microsoft","product":"word"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40361","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40361"},{"url":"https://github.com/advisories/GHSA-vcq9-67c7-g6vr"}],"sources":{"cve":[{"id":"CVE-2026-40361","title":"Microsoft Outlook and Word Remote Code Execution Vulnerability","description":"Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-05-12T16:59:18.607Z","modified":"2026-08-10T15:13:27.976Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T13:43:00.288193Z"}],"euvd":[{"id":"EUVD-2026-29643","description":"Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-05-12T16:59:18Z","modified":"2026-08-10T15:13:27Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T18:02:02.39155Z"}],"ghsa":[{"id":"GHSA-vcq9-67c7-g6vr","title":"Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.","description":"Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-05-12T18:30:44Z","modified":"2026-05-12T18:30:50Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:08:05.647564Z"}],"nvd":[{"id":"CVE-2026-40361","description":"Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-05-12T18:17:14.95Z","modified":"2026-10-26T18:10:00.173Z","cvss":[{"version":"3.1","score":8.4,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:12:18.613259Z"}]}}