Auth bypass in Microsoft Windows Admin Center
CVE-2026-58631
Improper authorization in Windows Admin Center allows an authorized attacker to execute code locally.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (21.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Microsoft Windows Admin Center — versions 1809.0
- Microsoft Windows Admin Center
Weakness classification (CWE)
References
- Windows Admin Center (WAC) Remote Code Execution Vulnerability (vendor-advisory, Patch, patch, Vendor Advisory)
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.