CVE-2026-56197 Windows Admin Center (WAC) Remote Code Execution Vulnerability

High 8.8 Published 14 Jul 2026 Updated 28 Oct 2026

An authorized attacker can execute arbitrary code remotely via command injection in Windows Admin Center.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-56197?

CVE-2026-56197 is a high-severity command injection vulnerability in Microsoft Windows Admin Center, published on 14 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Improper neutralization of special elements used in a command ('command injection') in Windows Admin Center allows an authorized attacker to execute code over a network.

Weakness: CWE-77

Which versions are affected by CVE-2026-56197?

It affects 1 product.

Products include Microsoft Windows Admin Center.

How do I fix CVE-2026-56197?

No fix has been published for CVE-2026-56197 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-56197 being exploited?

There is no known exploitation of CVE-2026-56197 in the wild and no public exploit code.

Sources

Also known as GHSA-x23w-f7cc-jghm.