{"id":"CVE-2025-62203","aliases":["EUVD-2025-93405","GHSA-99gh-9v29-84mj"],"status":"published","title":"Microsoft Excel Remote Code Execution Vulnerability","description":"Use after free in Microsoft Office Excel 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":"2026-11-12","score":0.00548,"percentile":0.46373,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2025-11-11T17:59:43Z","modified":"2026-10-18T21:10:00Z","products":[{"vendor":"microsoft","product":"365_apps"},{"vendor":"microsoft","product":"excel"},{"vendor":"microsoft","product":"microsoft 365 apps for enterprise"},{"vendor":"microsoft","product":"microsoft excel 2016"},{"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":"office"},{"vendor":"microsoft","product":"office online server"},{"vendor":"microsoft","product":"office_long_term_servicing_channel"},{"vendor":"microsoft","product":"office_online_server"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-62203","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-62203"},{"url":"https://github.com/advisories/GHSA-99gh-9v29-84mj"}],"sources":{"cve":[{"id":"CVE-2025-62203","title":"Microsoft Excel Remote Code Execution Vulnerability","description":"Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","status":"published","published":"2025-11-11T17:59:43.546Z","modified":"2026-02-26T16:57:20.223Z","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-416"],"updated_at":"2026-11-02T14:32:54.87586Z"}],"euvd":[{"id":"EUVD-2025-93405","description":"Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","status":"published","published":"2025-11-11T17:59:43Z","modified":"2026-02-26T16:57:20Z","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":"2026-11-02T19:48:24.701817Z"}],"ghsa":[{"id":"GHSA-99gh-9v29-84mj","title":"Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","description":"Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","status":"published","published":"2025-11-11T18:30:22Z","modified":"2025-11-11T18:30:23Z","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-416"],"updated_at":"2026-11-02T15:04:44.661811Z"}],"nvd":[{"id":"CVE-2025-62203","description":"Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","status":"published","published":"2025-11-11T18:15:43.97Z","modified":"2026-10-18T21:10:00.12Z","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-416"],"updated_at":"2026-11-02T14:11:43.650381Z"}]}}