CVE-2026-26137CWE-918

Microsoft Exchange Elevation of Privilege Vulnerability

Critical · published March 19, 2026

CVSS v3.1
9.9
EPSS
1%
Percentile
54.3
In the wild
Unconfirmed
What it is

Server-side request forgery (ssrf) in Microsoft Exchange allows an authorized attacker to elevate privileges over a network.

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
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
CVSS v4.0
Not supplied
EPSS
0.00745 · 54.3th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-03-19T21:06Z
EPSS history
Timeline
  • 19 MAR 21:06Z
    Microsoft Exchange Elevation of Privilege Vulnerability
    cvelistv5