CVE-2026-24303 Microsoft Partner Center Elevation of Privilege Vulnerability

Critical 9.6 Published Updated

An attacker can elevate privileges in Microsoft Partner Center due to improper certificate validation, requiring a patch.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-24303?

CVE-2026-24303 is a critical vulnerability in Microsoft Partner Center, published on 23 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.

Weakness: CWE-284

Which versions are affected by CVE-2026-24303?

It affects 1 product.

Products include Microsoft Partner Center.

How do I fix CVE-2026-24303?

No fix has been published for CVE-2026-24303 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-24303 being exploited?

There is no known exploitation of CVE-2026-24303 in the wild and no public exploit code.

Sources

Also known as GHSA-59wx-rpwf-57h6.

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