CVE-2026-34327
Microsoft Partner Center Spoofing vulnerability
MSRC advisory May 7, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-34327
- CWE
- CWE-610
- Affected products
- Microsoft Partner Center Spoofing · Microsoft Microsoft Partner Center Spoofing · Microsoft
What happened
Externally controlled reference to a resource in another sphere in Microsoft Partner Center allows an unauthorized attacker to perform spoofing over a network.
What it means for your business
Microsoft Partner Center Spoofing vulnerability (CVE-2026-34327) was added to Microsoft’s security update guidance. Externally controlled reference to a resource in another sphere in Microsoft Partner Center allows an unauthorized attacker to perform spoofing over a network. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
CVSS score
8.2 (High)
EPSS probability
0.64%
Sources
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