Microsoft Partner Center External Resource Reference Spoofing

Publication date: 2026-05-07

Last updated on: 2026-05-08

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-05-07

Last Modified

2026-05-08

Generated

2026-07-09

AI Q&A

2026-05-08

EPSS Evaluated

2026-07-08

NVD

CVE-2026-34327

EUVD

EUVD-2026-28452

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	partner_center	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-610	The product uses an externally controlled name or reference that resolves to a resource that is outside of the intended control sphere.

Attack-Flow Graph

Executive Summary

This vulnerability involves an externally controlled reference to a resource in another sphere within Microsoft Partner Center. It allows an unauthorized attacker to perform spoofing over a network.

Impact Analysis

The vulnerability can impact you by enabling an attacker to spoof network communications, potentially leading to unauthorized access or deception. According to the CVSS score, it has a high impact on confidentiality, a low impact on integrity, and no impact on availability.

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