{"id":"CVE-2026-45456","aliases":["EUVD-2026-35668","GHSA-6gjp-59mg-98gh"],"status":"published","title":"Microsoft Outlook and Word Remote Code Execution Vulnerability","description":"Access of resource using incompatible type ('type confusion') 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":0.00438,"percentile":0.38388,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-843"],"published":"2026-06-09T17:04:36Z","modified":"2026-11-10T23:23:36Z","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 365 for mac"},{"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 sharepoint enterprise server 2016"},{"vendor":"microsoft","product":"microsoft sharepoint server 2019"},{"vendor":"microsoft","product":"microsoft sharepoint server subscription edition"},{"vendor":"microsoft","product":"microsoft word 2016"},{"vendor":"microsoft","product":"microsoft_365"},{"vendor":"microsoft","product":"office_2016"},{"vendor":"microsoft","product":"office_2019"},{"vendor":"microsoft","product":"office_2021"},{"vendor":"microsoft","product":"office_2024"},{"vendor":"microsoft","product":"sharepoint_server"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45456","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45456"},{"url":"https://github.com/advisories/GHSA-6gjp-59mg-98gh"}],"sources":{"cve":[{"id":"CVE-2026-45456","title":"Microsoft Outlook and Word Remote Code Execution Vulnerability","description":"Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-06-09T17:04:36.685Z","modified":"2026-11-10T23:23:36.368Z","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-843"],"updated_at":"2026-11-11T00:50:10.062046Z"}],"euvd":[{"id":"EUVD-2026-35668","description":"Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-06-09T17:04:36Z","modified":"2026-11-10T23:23:36Z","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":"2026-11-11T00:24:45.886763Z"}],"ghsa":[{"id":"GHSA-6gjp-59mg-98gh","title":"Access of resource using incompatible type ('type confusion') in Microsoft Office allows an...","description":"Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-06-09T18:30:48Z","modified":"2026-06-09T18:30:49Z","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-843"],"updated_at":"2026-11-02T15:08:41.598643Z"}],"nvd":[{"id":"CVE-2026-45456","description":"Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-06-09T17:17:19.79Z","modified":"2026-07-23T08:10:00.137Z","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-843"],"updated_at":"2026-11-02T14:12:23.109705Z"}]}}