CVE-2025-40939

MediumCVSS 4.6/10Last modified Oct 23, 2026

Description

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V4.0.1). The affected device contains a USB port which allows unauthenticated connections. This could allow an attacker with physical access to the device to trigger reboot that could cause denial of service condition.

Metrics

CVSS 3.1 4.6/10CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-284

Affected software

No affected versions have been published.

Timeline

Published: Dec 9, 2025
Last modified: Oct 23, 2026
NVD status: Analyzed

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