CVE-2026-65801
Microsoft Exchange Online Elevation of Privilege Vulnerability
- State
- Published
- Severity
- 10.0 Critical
- Published
- Aug 20, 2026
- Updated
- Oct 30, 2026
- Reserved
- Jul 22, 2026
Description
Server-side request forgery (ssrf) in Microsoft Exchange Online allows an unauthorized attacker to elevate privileges over a network.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 10.0 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C | microsoft |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
Microsoft Exchange OnlineMicrosoft |
|
References
- Microsoft Exchange Online Elevation of Privilege Vulnerabilityvendor-advisorypatch
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