Description
Externally controlled reference to a resource in another sphere in Microsoft Partner Center allows an unauthorized attacker to perform spoofing over a network.
Affected products
microsoft: partner center
References1
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34327 Vendor Advisory
Metrics
- CVSS 3.1
-
8.2
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N - EPSS — exploit probability
- 1% percentile: 51 · as of 13 November 2026
- CWE
- CWE-610
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.