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CVE-2026-26137
Published: Mar 19, 2026
Modified: Apr 14, 2026
PUBLISHED
CVSS v3.1
9.9
CRITICAL
Description
Server-side request forgery (ssrf) in Microsoft Exchange allows an authorized attacker to elevate privileges over a network.
| Vendor | Product | Versions |
|---|---|---|
Microsoft | Microsoft Exchange Online | affected - |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L/E:U/RL:O/RC:C
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
Low
References
Microsoft Exchange Elevation of Privilege Vulnerability
vendor-advisory
patch
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