CVE-2025-54100

moderate-risk

Published 2025-12-09

Improper neutralization of special elements used in a command ('command injection') in Windows PowerShell allows an unauthorized attacker to execute code locally.

Do I need to act?

0.35% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.8/10 High

LOCAL / LOW complexity

Affected Products (19)

Windows 10 1607

Windows 10 1809

Windows 10 21H2

Windows 10 22H2

Windows 11 23H2

Windows 11 24H2

Windows 11 25H2

Windows Server 2008

Windows Server 2012

Windows Server 2016

Windows Server 2019

Windows Server 2022

Windows Server 2022 23H2

Windows Server 2025

Affected Vendors

Microsoft

References (3)

Vendor Advisory https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54100

https://www.vicarius.io/vsociety/posts/cve-2025-54100-detect-powershell-vulnerab...

https://www.vicarius.io/vsociety/posts/cve-2025-54100-mitigate-powershell-vulner...

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moderate-risk

Severity 24/34 · High

Exploitability 1/34 · Minimal

Exposure 19/34 · Moderate