{"id":"CVE-2026-48582","aliases":["EUVD-2026-38090","GHSA-j97v-rpjv-q4wf"],"status":"published","title":"Microsoft Exchange Online Elevation of Privilege Vulnerability","description":"Missing authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.","severity":{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00689,"percentile":0.53194,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2026-06-19T20:29:41Z","modified":"2026-11-10T23:25:20Z","products":[{"vendor":"","product":"microsoft exchange online"},{"vendor":"microsoft","product":"exchange_online"},{"vendor":"microsoft","product":"microsoft exchange online"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48582","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48582"},{"url":"https://github.com/advisories/GHSA-j97v-rpjv-q4wf"}],"sources":{"cve":[{"id":"CVE-2026-48582","title":"Microsoft Exchange Online Elevation of Privilege Vulnerability","description":"Missing authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-06-19T20:29:41.615Z","modified":"2026-11-10T23:25:20.323Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical","assessor":"cna"}],"cwes":["CWE-862"],"updated_at":"2026-11-11T00:50:10.599584Z"}],"euvd":[{"id":"EUVD-2026-38090","description":"Missing authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-06-19T20:29:41Z","modified":"2026-11-10T23:25:20Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","level":"critical"}],"updated_at":"2026-11-11T00:24:45.332412Z"}],"ghsa":[{"id":"GHSA-j97v-rpjv-q4wf","title":"Missing authorization in Microsoft Exchange Online allows an authorized attacker to elevate...","description":"Missing authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-06-19T21:32:48Z","modified":"2026-06-19T21:32:59Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T15:08:55.029086Z"}],"nvd":[{"id":"CVE-2026-48582","description":"Missing authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.","status":"published","published":"2026-06-19T21:17:00.787Z","modified":"2026-10-25T23:10:00.167Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"critical","assessor":"secondary"}],"cwes":["CWE-862"],"updated_at":"2026-11-02T14:12:24.912854Z"}]}}