How severe is CVE-2025-66404?

CVE-2025-66404 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-66404 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-66404?

CVE-2025-66404 affects Suyogs Mcp-server-kubernetes. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-66404?

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

Does CVE-2025-66404 have an EU (EUVD) identifier?

Yes. CVE-2025-66404 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201109.

When was CVE-2025-66404 published?

CVE-2025-66404 was published on 2025-12-03 and last updated on 2026-06-17.

CVE-2025-66404

CVE-2025-66404 is a medium-severity vulnerability in Suyogs Mcp-server-kubernetes with a CVSS 3.x base score of 6.4. 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-77.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-201109
Weakness: CWE-77
Affected product: Suyogs Mcp-server-kubernetes
Published: 2025-12-03
Last modified: 2026-06-17

Description

MCP Server Kubernetes is an MCP Server that can connect to a Kubernetes cluster and manage it. Prior to 2.9.8, there is a security issue exists in the exec_in_pod tool of the mcp-server-kubernetes MCP Server. The tool accepts user-provided commands in both array and string formats. When a string format is provided, it is passed directly to shell interpretation (sh -c) without input validation, allowing shell metacharacters to be interpreted. This vulnerability can be exploited through direct command injection or indirect prompt injection attacks, where AI agents may execute commands without explicit user intent. This vulnerability is fixed in 2.9.8.

Frequently asked questions

What is CVE-2025-66404?: MCP Server Kubernetes is an MCP Server that can connect to a Kubernetes cluster and manage it. Prior to 2.9.8, there is a security issue exists in the exec_in_pod tool of the mcp-server-kubernetes MCP Server. The tool accepts user-provided commands in both array and string formats. When a string format is provided, it is passed directly to shell interpretation (sh -c) without input validation, allowing shell metacharacters to be interpreted. This vulnerability can be exploited through direct command injection or indirect prompt injection attacks, where AI agents may execute commands without explicit user intent. This vulnerability is fixed in 2.9.8.
How severe is CVE-2025-66404?: CVE-2025-66404 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-66404 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-66404?: CVE-2025-66404 affects Suyogs Mcp-server-kubernetes. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-66404?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-66404 have an EU (EUVD) identifier?: Yes. CVE-2025-66404 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201109.
When was CVE-2025-66404 published?: CVE-2025-66404 was published on 2025-12-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:suyogs:mcp-server-kubernetes:*:*:*:*:*:node.js:*:*

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