How severe is CVE-2025-27395?

CVE-2025-27395 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-27395 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-27395?

CVE-2025-27395 affects Siemens Scalance Lpe9403 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-27395?

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-2025-27395 have an EU (EUVD) identifier?

Yes. CVE-2025-27395 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7765.

When was CVE-2025-27395 published?

CVE-2025-27395 was published on 2025-03-11 and last updated on 2026-06-17.

CVE-2025-27395

CVE-2025-27395 is a high-severity vulnerability in Siemens Scalance Lpe9403 Firmware with a CVSS 3.x base score of 7.2. 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: High (CVSS 3.x base score 7.2)
CVSS v4: 8.6
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-7765
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 the scope of files accessible through and the privileges of the SFTP functionality. This could allow an authenticated highly-privileged remote attacker to read and write arbitrary files.

Frequently asked questions

What is CVE-2025-27395?: A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0). Affected devices do not properly limit the scope of files accessible through and the privileges of the SFTP functionality. This could allow an authenticated highly-privileged remote attacker to read and write arbitrary files.
How severe is CVE-2025-27395?: CVE-2025-27395 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-27395 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-27395?: CVE-2025-27395 affects Siemens Scalance Lpe9403 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-27395?: 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-2025-27395 have an EU (EUVD) identifier?: Yes. CVE-2025-27395 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-7765.
When was CVE-2025-27395 published?: CVE-2025-27395 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:*:*:*:*:*:*:*:*

More vulnerabilities in Siemens Scalance Lpe9403 Firmware

CVE-2023-27407 — Critical (CVSS 9.9): A vulnerability has been identified in SCALANCE LPE9403 (All versions < V2.1). The web based management of affected…
CVE-2025-27396 — High (CVSS 8.8): A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0). Affected devices do…
CVE-2025-40582 — High (CVSS 7.8): A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions with SINEMA Remote Connect…
CVE-2025-40574 — High (CVSS 7.8): A vulnerability has been identified in SCALANCE LPE9403 (6GK5998-3GS00-2AC2) (All versions < V4.0 HF0). Affected…
CVE-2022-0847 — High (CVSS 7.8): A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in…
CVE-2021-4034 — High (CVSS 7.8): A local privilege escalation vulnerability was found on polkit's pkexec utility. The pkexec application is a setuid…

All CVEs affecting Siemens Scalance Lpe9403 Firmware →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-48282 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted…
CVE-2026-54917 — Critical (CVSS 10.0): SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the…
CVE-2026-11429 — Critical (CVSS 10.0): Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file…
CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
CVE-2026-36767 — Critical (CVSS 10.0): A path traversal vulnerability in the /content/images/add endpoint of shopizer v3.2.5 allows attackers write arbitrary…

Browse all CWE-22 (Path Traversal) vulnerabilities →