CVE-2026-48582
Microsoft Exchange Online Elevation of Privilege Vulnerability
- State
- Published
- Severity
- 9.6 Critical
- Published
- Jun 19, 2026
- Updated
- Sep 24, 2026
- Reserved
- May 21, 2026
Description
Missing authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.6 Critical | 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 | microsoft |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
Microsoft Exchange OnlineMicrosoft |
|
References
- Microsoft Exchange Online Elevation of Privilege Vulnerabilityvendor-advisorypatch
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