How severe is CVE-2025-9708?

CVE-2025-9708 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-9708 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-9708?

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

Does CVE-2025-9708 have an EU (EUVD) identifier?

Yes. CVE-2025-9708 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29657.

When was CVE-2025-9708 published?

CVE-2025-9708 was published on 2025-09-16 and last updated on 2026-06-17.

CVE-2025-9708

CVE-2025-9708 is a medium-severity vulnerability with a CVSS 3.x base score of 6.8. 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-295.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-29657
Weakness: CWE-295
Published: 2025-09-16
Last modified: 2026-06-17

Description

A vulnerability exists in the Kubernetes C# client where the certificate validation logic accepts properly constructed certificates from any Certificate Authority (CA) without properly verifying the trust chain. This flaw allows a malicious actor to present a forged certificate and potentially intercept or manipulate communication with the Kubernetes API server, leading to possible man-in-the-middle attacks and API impersonation.

Frequently asked questions

What is CVE-2025-9708?: A vulnerability exists in the Kubernetes C# client where the certificate validation logic accepts properly constructed certificates from any Certificate Authority (CA) without properly verifying the trust chain. This flaw allows a malicious actor to present a forged certificate and potentially intercept or manipulate communication with the Kubernetes API server, leading to possible man-in-the-middle attacks and API impersonation.
How severe is CVE-2025-9708?: CVE-2025-9708 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-9708 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-9708?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-9708 have an EU (EUVD) identifier?: Yes. CVE-2025-9708 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-29657.
When was CVE-2025-9708 published?: CVE-2025-9708 was published on 2025-09-16 and last updated on 2026-06-17.

References

Other CWE-295 (Improper Certificate Validation) vulnerabilities

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