How severe is CVE-2025-64171?

CVE-2025-64171 has a CVSS 4.0 base score of 8.7, rated high severity.

Is CVE-2025-64171 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-64171?

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-2025-64171 have an EU (EUVD) identifier?

Yes. CVE-2025-64171 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37859.

When was CVE-2025-64171 published?

CVE-2025-64171 was published on 2025-11-06 and last updated on 2026-06-17.

CVE-2025-64171

CVE-2025-64171 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-862.

Key facts

Severity: High (CVSS 4.0 base score 8.7)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-37859
Weakness: CWE-862
Published: 2025-11-06
Last modified: 2026-06-17

Description

MARIN3R is a lightweight, CRD based envoy control plane for kubernetes. In versions 0.13.3 and below, there is a cross-namespace secret access vulnerability in the project's DiscoveryServiceCertificate which allows users to bypass RBAC and access secrets in unauthorized namespaces. This issue is fixed in version 0.13.4.

Frequently asked questions

What is CVE-2025-64171?: MARIN3R is a lightweight, CRD based envoy control plane for kubernetes. In versions 0.13.3 and below, there is a cross-namespace secret access vulnerability in the project's DiscoveryServiceCertificate which allows users to bypass RBAC and access secrets in unauthorized namespaces. This issue is fixed in version 0.13.4.
How severe is CVE-2025-64171?: CVE-2025-64171 has a CVSS 4.0 base score of 8.7, rated high severity.
Is CVE-2025-64171 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-64171?: 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-2025-64171 have an EU (EUVD) identifier?: Yes. CVE-2025-64171 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37859.
When was CVE-2025-64171 published?: CVE-2025-64171 was published on 2025-11-06 and last updated on 2026-06-17.

References

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