CVE-2026-34327CWE-610

Microsoft Partner Center Spoofing Vulnerability

High · published May 7, 2026

CVSS v3.1
8.2
EPSS
1%
Percentile
48.2
In the wild
Unconfirmed
What it is

Externally controlled reference to a resource in another sphere in Microsoft Partner Center allows an unauthorized attacker to perform spoofing over a network.

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00603 · 48.2th percentile
Weakness
CWE-610 · Externally Controlled Reference to a Resource in Another Sphere
Published
2026-05-07T20:58Z
EPSS history
Timeline
  • 07 MAY 20:58Z
    Microsoft Partner Center Spoofing Vulnerability
    cvelistv5