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CVE-2025-40939

5.1 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 5.1 · siemensNVD modified 2026-10-23 22:10

Affected (CPE criteria) 1

  • cpe:2.3:o:siemens:simatic_cn_4100_firmware:*:*:*:*:*:*:*:*

References 1