How severe is CVE-2025-27397?

CVE-2025-27397 has a CVSS 3.x base score of 3.8, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-27397 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-27397?

CVE-2025-27397 affects Siemens Scalance Lpe9403 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-27397?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-27397 have an EU (EUVD) identifier?

Yes. CVE-2025-27397 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7767.

When was CVE-2025-27397 published?

CVE-2025-27397 was published on 2025-03-11 and last updated on 2026-06-17.

CVE-2025-27397

CVE-2025-27397 is a low-severity vulnerability in Siemens Scalance Lpe9403 Firmware with a CVSS 3.x base score of 3.8. 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-22.

Key facts

Severity: Low (CVSS 3.x base score 3.8)
CVSS v4: 5.1
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-7767
Weakness: CWE-22
Affected product: Siemens Scalance Lpe9403 Firmware
Published: 2025-03-11
Last modified: 2026-06-17

Description

A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0). Affected devices do not properly limit user controlled paths to which logs are written and from where they are read. This could allow an authenticated highly-privileged remote attacker to read and write arbitrary files in the filesystem, if and only if the malicious path ends with 'log' .

Frequently asked questions

What is CVE-2025-27397?: A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0). Affected devices do not properly limit user controlled paths to which logs are written and from where they are read. This could allow an authenticated highly-privileged remote attacker to read and write arbitrary files in the filesystem, if and only if the malicious path ends with 'log' .
How severe is CVE-2025-27397?: CVE-2025-27397 has a CVSS 3.x base score of 3.8, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-27397 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-27397?: CVE-2025-27397 affects Siemens Scalance Lpe9403 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-27397?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-27397 have an EU (EUVD) identifier?: Yes. CVE-2025-27397 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7767.
When was CVE-2025-27397 published?: CVE-2025-27397 was published on 2025-03-11 and last updated on 2026-06-17.

References

https://cert-portal.siemens.com/productcert/html/ssa-075201.html

Affected products (1)

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

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