{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-48582: Microsoft Exchange Online Elevation of Privilege Vulnerability","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-48582","status":"final","version":"1","initial_release_date":"2026-06-19T20:29:41.615Z","current_release_date":"2026-06-19T20:29:41.615Z","revision_history":[{"date":"2026-06-19T20:29:41.615Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"Missing authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-48582 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-48582"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-48582"},{"category":"external","summary":"Microsoft Exchange Online Elevation of Privilege Vulnerability","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48582"}]},"product_tree":{"branches":[{"category":"vendor","name":"Microsoft","branches":[{"category":"product_name","name":"Microsoft Exchange Online","branches":[{"category":"product_version","name":"-","product":{"name":"Microsoft Microsoft Exchange Online -","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:microsoft:microsoft_exchange_online:-:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-48582","title":"Microsoft Exchange Online Elevation of Privilege Vulnerability","notes":[{"category":"description","text":"Missing authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"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","baseScore":9.6,"baseSeverity":"CRITICAL"},"products":["CSAFPID-1"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1"]}]}]}