Command Injection in Microsoft Windows and Windows Server - CVE-2025-54100

Vulnerability identifier: #VU119496

CSH Severity: High

CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-54100

CWE-ID: CWE-77

Exploitation vector: Remote access

Exploit availability: Public exploit is available

The vulnerability allows a remote attacker to execute arbitrary commands on the system.

The vulnerability exists due to insufficient input validation in PowerShell. A remote attacker can trick a victim to open a specially crafted file and execute arbitrary commands.

Microsoft Windows
Windows Server

Install updates from vendor's website.

Microsoft Windows - addressed in versions 10 21H2 10.0.19043.6456, 10 21H2 10.0.19044.6691, 10 22H2 10.0.19045.6691, 10 1607 10.0.14393.8688, 10 1809 10.0.17763.8146, 11 23H2 10.0.22631.6345, 11 24H2 10.0.26100.7456, 11 24H2 10.0.26100.7462
Windows Server - addressed in versions 2008 R2 6.1.7601.28064, 2008 6.0.6003.23666, 2012 R2 6.3.9600.22920, 2012 6.2.9200.25815, 2016 10.0.14393.8688, 2019 10.0.17763.8146, 2022 23H2 10.0.25398.2025, 2022 10.0.20348.4529, 2025 10.0.26100.7456, 2025 10.0.26100.7462

• Exploit #12311 - CVE-2025-54100 (January 16, 2026)
• Exploit #12288 - CVE-2025-54100 (January 9, 2026)

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2025-54100

• Command Injection in Microsoft PowerShell