What is CVE-2026-58631?

CVE-2026-58631 is a high-severity vulnerability in Microsoft Windows Admin Center, classified under Improper Authorization. CVSS score: 7.8/10. Published 2026-07-14.

How severe is CVE-2026-58631?

High severity. CVSS v3 base score is 7.8 out of 10.

Auth bypass in Microsoft Windows Admin Center

CVE-2026-58631

Improper authorization in Windows Admin Center allows an authorized attacker to execute code locally.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Microsoft Windows Admin Center — versions 1809.0

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

secure@microsoft.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-58631?: CVE-2026-58631 is a high-severity vulnerability in Microsoft Windows Admin Center, classified under Improper Authorization. CVSS score: 7.8/10. Published 2026-07-14.
How severe is CVE-2026-58631?: High severity. CVSS v3 base score is 7.8 out of 10.