{"id":"CVE-2026-23657","aliases":["EUVD-2026-22361","GHSA-4wh4-v696-2r7r"],"status":"published","title":"Microsoft Word Remote Code Execution Vulnerability","description":"Use after free in Microsoft Office Word 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":"2026-11-10","score":0.00411,"percentile":0.35733,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2026-04-14T16:57:52Z","modified":"2026-10-26T21:10:00Z","products":[{"vendor":"microsoft","product":"365_apps"},{"vendor":"microsoft","product":"microsoft 365 apps for enterprise"},{"vendor":"microsoft","product":"microsoft office ltsc 2024"},{"vendor":"microsoft","product":"office_long_term_servicing_channel"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23657","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23657"},{"url":"https://github.com/advisories/GHSA-4wh4-v696-2r7r"}],"sources":{"cve":[{"id":"CVE-2026-23657","title":"Microsoft Word Remote Code Execution Vulnerability","description":"Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-04-14T16:57:52.448Z","modified":"2026-10-15T15:53:05.215Z","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":"2026-11-02T13:42:15.603999Z"}],"euvd":[{"id":"EUVD-2026-22361","description":"Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-04-14T16:57:52Z","modified":"2026-10-15T15:53:05Z","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":"2026-11-02T17:00:12.978606Z"}],"ghsa":[{"id":"GHSA-4wh4-v696-2r7r","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":"2026-04-14T18:30:37Z","modified":"2026-04-14T18:30:43Z","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":"2026-11-02T15:07:29.002055Z"}],"nvd":[{"id":"CVE-2026-23657","description":"Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-04-14T18:16:44.327Z","modified":"2026-10-26T21:10:00.17Z","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":"2026-11-02T14:12:14.748836Z"}]}}