{"id":"CVE-2026-48582","title":"Microsoft Exchange Online Elevation of Privilege Vulnerability","summary":"Missing authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.","severity":"critical","cvss":9.6,"cvssVector":"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","cvssSource":"cna","cwe":["CWE-862"],"vendor":"Microsoft","product":"Microsoft Exchange Online","affected":["exchange_online -"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-06-23T00:00:00+00:00"},"published":"2026-06-19","updated":"2026-09-24","sourceUpdated":"2026-09-24T13:45:18.934Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-48582","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48582","label":"Microsoft Exchange Online Elevation of Privilege Vulnerability"}],"tags":["cve.org"],"epss":0.00689,"epssPercentile":0.51361,"ingestedAt":"2026-09-24T14:44:21.358Z","slug":"CVE-2026-48582","body":"## Overview\n\nMissing authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.\n\n## Affected\n\n- `exchange_online -`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":52.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}