CVE-2023-27408

Name: CVE-2023-27408
Creator: NVD / NIST
Published: 2023-05-09T13:15:16.727+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.3/10EPSS 0.17%

Last modified Jun 17, 2026

CVE-2023-27408 is a low-severity vulnerability rated 3.3/10 on the CVSS scale. A vulnerability has been identified in SCALANCE LPE9403 (All versions < V2.1). The `i2c` mutex file is created with the permissions bits of `-rw-rw-rw-`. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in SCALANCE LPE9403 (All versions < V2.1). The `i2c` mutex file is created with the permissions bits of `-rw-rw-rw-`. This file is used as a mutex for multiple applications interacting with i2c. This could allow an authenticated attacker with access to the SSH interface on the affected device to interfere with the integrity of the mutex and the data it protects.

Metrics

CVSS 3.1

3.3/10

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

EPSS Probability

0.17%

6.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-378

Affected Software

Vendor	Product	Versions
Siemens	Scalance Lpe9403 Firmware	< 2.1

References

https://cert-portal.siemens.com/productcert/pdf/ssa-325383.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-325383.pdfVendor Advisory

Timeline

Published: May 9, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-27408?

How severe is CVE-2023-27408?

CVE-2023-27408 has a CVSS score of 3.3/10 (LOW severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.

How do I fix CVE-2023-27408?

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-2023-27408?

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

Scan your code now

Source: NVD / NIST