What is CVE-2026-34327?

CVE-2026-34327 is a security advisory published by Microsoft Security Response Center (MSRC) with Critical severity. Microsoft Partner Center Spoofing Vulnerability

Which CVE IDs does CVE-2026-34327 cover?

CVE-2026-34327 covers the following CVE IDs: CVE-2026-34327. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-34327?

CVE-2026-34327 has a CVSS v3 base score of 8.2, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-34327?

CVE-2026-34327 affects 1 product, including: Microsoft Partner Center.

CVE-2026-34327CriticalCVSS 8.2

Microsoft Partner Center Spoofing Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

May 22, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-34327 →

📋 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 products1

Microsoft Partner Center

🔗 References (1)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34327