Vulnerability Database

314,452

Total vulnerabilities in the database

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.

  • Published: Dec 9, 2025
  • Updated: Dec 10, 2025
  • CVE: CVE-2025-40939
  • Severity: Low
  • Exploit:

CVSS v3:

  • Severity: Low
  • Score: 4.6
  • AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWEs:

OWASP TOP 10:

Software From Fixed in
siemens / simatic_cn_4100_firmware - 4.0.1