{"id":"CVE-2026-81956","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-81956","summary":"Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","details":"Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.","published":"2026-09-08T18:20:59.360","modified":"2026-09-09T14:05:36.043","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"FIX","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81956"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-09T14:05:36.043"}}