{"id":"CVE-2026-55898","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-55898","summary":"Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.","details":"Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.","published":"2026-07-14T18:18:21.640","modified":"2026-07-15T17:12:17.667","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55898"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T17:12:17.667"}}