CVE-2025-40939 | THREATINT

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.

PUBLISHED Reserved 2025-04-16 | Published 2025-12-09 | Updated 2025-12-09 | Assigner siemens

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

MEDIUM: 5.1CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-284: Improper Access Control

Product status

Default status

unknown

Any version before V4.0.1

affected

References

cert-portal.siemens.com/productcert/html/ssa-416652.html

cve.org (CVE-2025-40939)

nvd.nist.gov (CVE-2025-40939)

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