How severe is CVE-2025-40629?

CVE-2025-40629 has a CVSS 4.0 base score of 8.7, rated high severity.

Is CVE-2025-40629 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.

How do I fix CVE-2025-40629?

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-2025-40629 have an EU (EUVD) identifier?

Yes. CVE-2025-40629 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15442.

When was CVE-2025-40629 published?

CVE-2025-40629 was published on 2025-05-16 and last updated on 2026-06-17.

CVE-2025-40629

CVE-2025-40629 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. 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 4.0 base score 8.7)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-15442
Weakness: CWE-22
Published: 2025-05-16
Last modified: 2026-06-17

Description

PNETLab 4.2.10 does not properly sanitize user inputs in its file access mechanisms. This allows attackers to perform directory traversal by manipulating file paths in HTTP requests. Specifically, the application is vulnerable to requests that access sensitive files outside the intended directory.

Frequently asked questions

What is CVE-2025-40629?: PNETLab 4.2.10 does not properly sanitize user inputs in its file access mechanisms. This allows attackers to perform directory traversal by manipulating file paths in HTTP requests. Specifically, the application is vulnerable to requests that access sensitive files outside the intended directory.
How severe is CVE-2025-40629?: CVE-2025-40629 has a CVSS 4.0 base score of 8.7, rated high severity.
Is CVE-2025-40629 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.
How do I fix CVE-2025-40629?: 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-2025-40629 have an EU (EUVD) identifier?: Yes. CVE-2025-40629 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15442.
When was CVE-2025-40629 published?: CVE-2025-40629 was published on 2025-05-16 and last updated on 2026-06-17.

References

https://www.incibe.es/en/incibe-cert/notices/aviso/path-traversal-vulnerability-pnetlab

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