Command Injection in Windows Admin Center - CVE-2026-56197
Published: July 17, 2026
Vulnerability identifier: #VU138262
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-56197
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Windows Admin Center
Windows Admin Center
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary commands on the system.
The vulnerability exists due to insufficient input validation in Windows Admin Center (WAC). A remote user can pass specially crafted data to the application and execute arbitrary commands.
How to mitigate CVE-2026-56197
Install updates from vendor's website.