OS Command Injection in Windows Admin Center - CVE-2026-122988
Published: November 11, 2026
Vulnerability identifier: #VU165470
CSH Severity: Medium
CVSS v4: 8.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-122988
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to escalate privileges and execute code on the Windows Admin Center gateway with a gateway administrator's privileges.
The vulnerability exists due to improper neutralization of special elements used in an operating system command in Windows Admin Center when processing VM conversion operations. A remote user can send a specially crafted network request to execute code with a gateway administrator's privileges when that administrator subsequently performs a VM conversion operation.
Affected software
Windows Admin Center
How to mitigate CVE-2026-122988
Install security update from vendor's website.
Windows Admin Center - update to 2.1.36