CVE-2023-29131

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V2.5). Affected device consists of an incorrect default value in the SSH configuration. This could allow an attacker to bypass network isolation.

CVSS 3.1

10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 36% of CVEs (scores of 2026-10-25)

CWE

CWE-276

Published

2023-07-11

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

Affected

• siemens:simatic_cn_4100_firmware

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-313488.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-313488.pdf

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