How severe is CVE-2025-40574?

CVE-2025-40574 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-40574 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-40574?

CVE-2025-40574 affects Siemens Scalance Lpe9403 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-40574?

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

Does CVE-2025-40574 have an EU (EUVD) identifier?

Yes. CVE-2025-40574 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14672.

When was CVE-2025-40574 published?

CVE-2025-40574 was published on 2025-05-13 and last updated on 2026-06-17.

CVE-2025-40574

CVE-2025-40574 is a high-severity vulnerability in Siemens Scalance Lpe9403 Firmware with a CVSS 3.x base score of 7.8. 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-732.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v4: 8.5
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-14672
Weakness: CWE-732
Affected product: Siemens Scalance Lpe9403 Firmware
Published: 2025-05-13
Last modified: 2026-06-17

Description

A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0 HF0). Affected devices do not properly assign permissions to critical ressources. This could allow a non-privileged local attacker to interact with the backupmanager service.

Frequently asked questions

What is CVE-2025-40574?: A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0 HF0). Affected devices do not properly assign permissions to critical ressources. This could allow a non-privileged local attacker to interact with the backupmanager service.
How severe is CVE-2025-40574?: CVE-2025-40574 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-40574 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-40574?: CVE-2025-40574 affects Siemens Scalance Lpe9403 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-40574?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-40574 have an EU (EUVD) identifier?: Yes. CVE-2025-40574 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14672.
When was CVE-2025-40574 published?: CVE-2025-40574 was published on 2025-05-13 and last updated on 2026-06-17.

References

https://cert-portal.siemens.com/productcert/html/ssa-327438.html

Affected products (1)

cpe:2.3:o:siemens:scalance_lpe9403_firmware:-:*:*:*:*:*:*:*

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