VULNERABILITY INTELLIGENCE

CVE-2025-40939

CVSS score4.6 MEDIUM
EPSS probability0.21%
CISA KEVNot currently listed
Published2025-12-09
Last modified2026-10-23
CVSS vectorCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • productcert@siemens.com: CWE-284

Primary references