Vulnerability Details CVE-2025-40939
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 5.5%
CVSS Severity
CVSS v3 Score 4.6
Products affected by CVE-2025-40939
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cpe:2.3:h:siemens:simatic_cn_4100:-
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cpe:2.3:o:siemens:simatic_cn_4100_firmware:*