How severe is CVE-2024-32740?

CVE-2024-32740 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-32740 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-32740?

CVE-2024-32740 affects Siemens Simatic Cn 4100 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-32740?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2024-32740 have an EU (EUVD) identifier?

Yes. CVE-2024-32740 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-30527.

When was CVE-2024-32740 published?

CVE-2024-32740 was published on 2024-05-14 and last updated on 2026-06-17.

CVE-2024-32740

CVE-2024-32740 is a critical-severity vulnerability in Siemens Simatic Cn 4100 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-30527
Weakness: CWE-798
Affected product: Siemens Simatic Cn 4100 Firmware
Published: 2024-05-14
Last modified: 2026-06-17

Description

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V3.0). The affected device contains undocumented users and credentials. An attacker could misuse the credentials to compromise the device locally or over the network.

Frequently asked questions

What is CVE-2024-32740?: A vulnerability has been identified in SIMATIC CN 4100 (All versions < V3.0). The affected device contains undocumented users and credentials. An attacker could misuse the credentials to compromise the device locally or over the network.
How severe is CVE-2024-32740?: CVE-2024-32740 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-32740 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-32740?: CVE-2024-32740 affects Siemens Simatic Cn 4100 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-32740?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-32740 have an EU (EUVD) identifier?: Yes. CVE-2024-32740 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-30527.
When was CVE-2024-32740 published?: CVE-2024-32740 was published on 2024-05-14 and last updated on 2026-06-17.

References

https://cert-portal.siemens.com/productcert/html/ssa-273900.html

Affected products (1)

cpe:2.3:o:siemens:simatic_cn_4100_firmware:*:*:*:*:*:*:*:*

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