Description
Improper certificate validation in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.
Affected products
microsoft: partner center
References1
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24303 Vendor Advisory
Metrics
- CVSS 3.1
-
9.6
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N - EPSS — exploit probability
- 0% percentile: 34 · as of 13 November 2026
- CWE
- CWE-284
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.