{"id":"CVE-2026-68804","aliases":["EUVD-2026-56758","GHSA-pr9p-842j-v7hq"],"status":"published","title":"Microsoft Excel Remote Code Execution Vulnerability","description":"Numeric truncation error 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":"2026-11-09","score":0.00466,"percentile":0.40653,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-122","CWE-197"],"published":"2026-08-11T17:07:07Z","modified":"2026-10-30T17:22:53Z","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 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_365"},{"vendor":"microsoft","product":"office online server"},{"vendor":"microsoft","product":"office_2019"},{"vendor":"microsoft","product":"office_2021"},{"vendor":"microsoft","product":"office_2024"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68804","tags":["vendor-advisory","patch","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68804"},{"url":"https://github.com/advisories/GHSA-pr9p-842j-v7hq"}],"sources":{"cve":[{"id":"CVE-2026-68804","title":"Microsoft Excel Remote Code Execution Vulnerability","description":"Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-08-11T17:07:07.683Z","modified":"2026-10-30T17:22:53.762Z","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-197","CWE-122"],"updated_at":"2026-11-02T13:45:59.110885Z"}],"euvd":[{"id":"EUVD-2026-56758","description":"Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-08-11T17:07:07Z","modified":"2026-10-30T17:22:53Z","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":"2026-11-02T16:59:03.451007Z"}],"ghsa":[{"id":"GHSA-pr9p-842j-v7hq","title":"Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute...","description":"Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-08-11T18:31:43Z","modified":"2026-08-11T18:31:49Z","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-122"],"updated_at":"2026-11-02T15:10:20.59674Z"}],"nvd":[{"id":"CVE-2026-68804","description":"Numeric truncation error in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","status":"published","published":"2026-08-11T17:19:04.353Z","modified":"2026-08-13T16:18:50.653Z","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-122","CWE-197"],"updated_at":"2026-11-02T14:12:36.880938Z"}]}}