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CVE-2025-40939

🗓️ 09 Jan 2026 09:16:06Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 5 Views

CVE-2025-40939: SIMATIC CN 4100 exposes unauthenticated USB access enabling reboot and denial of service on pre-4.0.1.

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09 Jan 2026 09:16Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.14.6
CVSS 45.1
EPSS0.00045
SSVC
5