CVE-2023-29054

Name: CVE-2023-29054
Creator: NVD / NIST
Published: 2023-04-11T10:15:18.517+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.26%

Last modified Jun 17, 2026

CVE-2023-29054 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT PRO (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2P IRT (All versions < V5.5.2), SCALANCE X202-2P IRT PRO (All versions < V5.5.2), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT PRO (All versions < V5.5.2), SCALANCE XF201-3P IRT (All versions < V5.5.2), SCALANCE XF202-2P IRT (All versions < V5.5.2), SCALANCE XF204-2BA IRT (All versions < V5.5.2), SCALANCE XF204IRT (All versions < V5.5.2), SIPLUS NET SCALANCE X202-2P IRT (All versions < V5.5.2). The SSH server on affected devices is configured to offer weak ciphers by default. This could allow an unauthorized attacker in a man-in-the-middle position to read and modify any data passed over the connection between legitimate clients and the affected device.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT PRO (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2P IRT (All versions < V5.5.2), SCALANCE X202-2P IRT PRO (All versions < V5.5.2), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT PRO (All versions < V5.5.2), SCALANCE XF201-3P IRT (All versions < V5.5.2), SCALANCE XF202-2P IRT (All versions < V5.5.2), SCALANCE XF204-2BA IRT (All versions < V5.5.2), SCALANCE XF204IRT (All versions < V5.5.2), SIPLUS NET SCALANCE X202-2P IRT (All versions < V5.5.2). The SSH server on affected devices is configured to offer weak ciphers by default. This could allow an unauthorized attacker in a man-in-the-middle position to read and modify any data passed over the connection between legitimate clients and the affected device.

Metrics

CVSS 3.1

7.4/10

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

EPSS Probability

0.26%

16.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-326

Affected Software

Vendor	Product	Versions
Siemens	Scalance X200-4p Irt Firmware	< 5.5.2
Siemens	Scalance X201-3p Irt Firmware	< 5.5.2
Siemens	Scalance X201-3p Irt Pro Firmware	< 5.5.2
Siemens	Scalance X202-2irt Firmware	< 5.5.2
Siemens	Scalance X202-2p Irt Firmware	< 5.5.2
Siemens	Scalance X202-2p Irt Pro Firmware	< 5.5.2
Siemens	Scalance X204irt Firmware	< 5.5.2
Siemens	Scalance X204irt Pro Firmware	< 5.5.2
Siemens	Scalance Xf201-3p Irt Firmware	< 5.5.2
Siemens	Scalance Xf202-2p Irt Firmware	< 5.5.2
Siemens	Scalance Xf204-2ba Irt Firmware	< 5.5.2
Siemens	Scalance Xf204irt Firmware	< 5.5.2
Siemens	Siplus Net Scalance X202-2p Irt Firmware	< 5.5.2

References

https://cert-portal.siemens.com/productcert/pdf/ssa-479249.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-479249.pdfVendor Advisory

Timeline

Published: Apr 11, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-29054?

How severe is CVE-2023-29054?

CVE-2023-29054 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.

How do I fix CVE-2023-29054?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-29054?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST