CVE-2026-34327 Microsoft Partner Center Spoofing Vulnerability
An attacker can exploit externally controlled references to perform spoofing attacks against Microsoft Partner Center users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-34327?
CVE-2026-34327 is a high-severity vulnerability in Microsoft Partner Center, published on 7 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Externally controlled reference to a resource in another sphere in Microsoft Partner Center allows an unauthorized attacker to perform spoofing over a network.
Weakness: CWE-610
Which versions are affected by CVE-2026-34327?
It affects 1 product.
Products include Microsoft Partner Center.
How do I fix CVE-2026-34327?
No fix has been published for CVE-2026-34327 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-34327 being exploited?
There is no known exploitation of CVE-2026-34327 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Partner Center
- CVE-2024-49035 Microsoft Partner Center Improper Access Control
- CVE-2026-96207 Microsoft Partner Center Elevation of Privilege Vulnerability
- CVE-2025-65041 Microsoft Partner Center Elevation of Privilege Vulnerability
- CVE-2026-24303 Microsoft Partner Center Elevation of Privilege Vulnerability
- CVE-2025-29814 Microsoft Partner Center Elevation of Privilege Vulnerability
Sources
Also known as GHSA-jvw8-2m5m-9449.