MSRC-CVE-2026-26119 — Windows Admin Center Elevation of Privilege Vulnerability

Summary

Impact: Elevation of Privilege. Microsoft rating: Critical. Not known to be exploited — Exploitation More Likely. Customer action: Required.

Details

What privileges could be gained by an attacker who successfully exploited the vulnerability?
The attacker would gain the rights of the user that is running the affected application.

Security updates
2.6.4 — https://aka.ms/wac2511

Vulnerabilities 1

High 8.8

CVE-2026-26119 Public exploit EPSS 11%

Windows Admin Center Elevation of Privilege Vulnerability

Improper authentication in Windows Admin Center allows an authorized attacker to elevate privileges over a network.

Microsoft Windows Admin Center Windows

Feb 17, 2026

Revision history

2026-02-17 #1
Information published.

References

CVE-2026-26119 Windows Admin Center Elevation of Privilege Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26119
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss