Auth bypass in Microsoft Windows Admin Center
CVE-2026-26119
Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges over a network.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.113 (96.0th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.113 · change: +0.105
Affected products
- Microsoft Windows Admin Center — versions 1809.0
- Microsoft Windows Admin Center
Weakness classification (CWE)
Public proof-of-concept exploits
References
- Windows Admin Center Elevation of Privilege Vulnerability (vendor-advisory, Patch, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-26119?
- CVE-2026-26119 is a high-severity vulnerability in Microsoft Windows Admin Center, classified under Improper Authentication. CVSS score: 8.8/10. Published 2026-02-17.
- How severe is CVE-2026-26119?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2026-26119 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.