{"id":"CVE-2026-85887","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-85887","summary":"Incorrect permission assignment for critical resource in M365 Copilot allows an authorized attacker to disclose information over a network.","details":"Incorrect permission assignment for critical resource in M365 Copilot allows an authorized attacker to disclose information over a network.","published":"2026-09-18T00:17:47.920","modified":"2026-09-18T00:17:47.920","cvss":{"score":7.7,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85887"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-18T00:17:47.920"}}