How severe is CVE-2025-4377?

CVE-2025-4377 has a CVSS 4.0 base score of 8.3, rated high severity.

Is CVE-2025-4377 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.

How do I fix CVE-2025-4377?

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-2025-4377 have an EU (EUVD) identifier?

Yes. CVE-2025-4377 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14084.

When was CVE-2025-4377 published?

CVE-2025-4377 was published on 2025-05-09 and last updated on 2026-06-17.

CVE-2025-4377

CVE-2025-4377 is a high-severity vulnerability with a CVSS 4.0 base score of 8.3. 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-20.

Key facts

Severity: High (CVSS 4.0 base score 8.3)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-14084
Weakness: CWE-20
Published: 2025-05-09
Last modified: 2026-06-17

Description

Improper Limitation of a Pathname caused a Path Traversal vulnerability in Sparx Systems Pro Cloud Server. This vulnerability is present in logview.php and it allows reading arbitrary files on the filesystem. Logview is accessible on Pro Cloud Server Configuration interface. This issue affects Pro Cloud Server: earlier than 6.0.165.

Frequently asked questions

What is CVE-2025-4377?: Improper Limitation of a Pathname caused a Path Traversal vulnerability in Sparx Systems Pro Cloud Server. This vulnerability is present in logview.php and it allows reading arbitrary files on the filesystem. Logview is accessible on Pro Cloud Server Configuration interface. This issue affects Pro Cloud Server: earlier than 6.0.165.
How severe is CVE-2025-4377?: CVE-2025-4377 has a CVSS 4.0 base score of 8.3, rated high severity.
Is CVE-2025-4377 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.
How do I fix CVE-2025-4377?: 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-2025-4377 have an EU (EUVD) identifier?: Yes. CVE-2025-4377 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-14084.
When was CVE-2025-4377 published?: CVE-2025-4377 was published on 2025-05-09 and last updated on 2026-06-17.

References

https://sparxsystems.com/products/procloudserver/6.1/

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