10

CVE-2023-29131: siemens simatic_cn_4100_firmware Incorrect Default Permissions

CVSS: 10.0v3.1CriticalModified
Published 11-07-2023Last modified 12-11-2024
Open JSON

Vulnerability summary

CVE-2023-29131 is a critical (CVSS 10.0) Incorrect Default Permissions vulnerability in siemens simatic_cn_4100_firmware. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 35.2% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
10.0/10
010
Critical · v3.1 (NVD)
EPSS score
0.42%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-07-2023
    PublishedVulnerability first disclosed.
  2. 12-11-2024
    Last modifiedVulnerability information updated.

Description

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 metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.42%

Chance of exploitation in the next 30 days

Percentile

35%

Versus all other CVEs

30-day change

0.00 pp

From 0.42% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.42%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Siemens1 product

1 vendor · 1 product

References

1 links