{"id":"CVE-2025-59231","aliases":["EUVD-2025-34385","GHSA-jh8q-f6hp-2rc7"],"status":"published","title":"Microsoft Excel Remote Code Execution Vulnerability","description":"Access of resource using incompatible type ('type confusion') 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":"2026-11-11","score":0.00525,"percentile":0.44984,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-843"],"published":"2025-10-14T17:00:36Z","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-2025-59231","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-59231"},{"url":"https://github.com/advisories/GHSA-jh8q-f6hp-2rc7"}],"sources":{"cve":[{"id":"CVE-2025-59231","title":"Microsoft Excel Remote Code Execution Vulnerability","description":"Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","status":"published","published":"2025-10-14T17:00:36.54Z","modified":"2026-02-26T17:47:19.919Z","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-843"],"updated_at":"2026-11-02T14:32:47.447481Z"}],"euvd":[{"id":"EUVD-2025-34385","description":"Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","status":"published","published":"2025-10-14T17:00:36Z","modified":"2026-02-26T17:47:19Z","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":"2026-11-02T19:48:23.405029Z"}],"ghsa":[{"id":"GHSA-jh8q-f6hp-2rc7","title":"Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an...","description":"Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","status":"published","published":"2025-10-14T18:30:35Z","modified":"2025-10-14T18:30:42Z","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-843"],"updated_at":"2026-11-02T15:03:57.996157Z"}],"nvd":[{"id":"CVE-2025-59231","description":"Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","status":"published","published":"2025-10-14T17:16:04.39Z","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-843"],"updated_at":"2026-11-02T14:11:38.17237Z"}]}}