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

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-14 · updated 2026-11-01
Weakness: CWE-77

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.

Affected products

Microsoft Windows Admin Center: before 2606 — fixed in 2606
Microsoft Windows Admin Center: from 1809.0 before 2.7.4 — fixed in 2.7.4

How to fix

Upgrade to a fixed version: Microsoft Windows Admin Center 2606; Microsoft Windows Admin Center 2.7.4. Check the vendor advisory for mitigations.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56197

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