Critical severity9.6NVD Advisory· Published Jun 19, 2026· Updated Jun 24, 2026
CVE-2026-48582
CVE-2026-48582
Description
Missing authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.
Affected products
2(expand)+ 1 more
- (no CPE)
- cpe:2.3:a:microsoft:exchange_online:-:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
1- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-48582nvdVendor Advisory
News mentions
1- Microsoft Cloud Batch: 13 CVEs Across Copilot, Azure, Exchange, and Developer ToolsVypr Intelligence · Jun 19, 2026