What is CVE-2025-62931?

CVE-2025-62931 is a medium-severity vulnerability in Microsoftstart Msn Partner Hub, classified under Missing Authorization. CVSS score: 4.3/10. Published 2025-10-27.

How severe is CVE-2025-62931?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Microsoftstart Msn Partner Hub

CVE-2025-62931

Missing Authorization vulnerability in microsoftstart MSN Partner Hub microsoft-start allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MSN Partner Hub: from n/a through <= 2.9.

Vulnerability class: Broken Access Control

EPSS: 0.002 (13.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Microsoftstart Msn Partner Hub — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2025-62931?: CVE-2025-62931 is a medium-severity vulnerability in Microsoftstart Msn Partner Hub, classified under Missing Authorization. CVSS score: 4.3/10. Published 2025-10-27.
How severe is CVE-2025-62931?: Medium severity. CVSS v3 base score is 4.3 out of 10.