What is CVE-2025-53355?

CVE-2025-53355 is a high-severity vulnerability in Flux159 Mcp-Server-Kubernetes, classified under Command Injection. CVSS score: 7.5/10. Published 2025-07-08.

How severe is CVE-2025-53355?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2025-53355 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Flux159 Mcp-Server-Kubernetes

CVE-2025-53355

MCP Server Kubernetes is an MCP Server that can connect to a Kubernetes cluster and manage it. A command injection vulnerability exists in the mcp-server-kubernetes MCP Server. The vulnerability is caused by the unsanitized use of input parameters within a call to child_process.execSync, enabling an attacker to inject arbitrary system commands. Successful exploitation can lead to remote code execution under the server process's privileges. This vulnerability is fixed in 2.5.0.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.022 (81.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Flux159 Mcp-server-kubernetes — versions < 2.5.0

Weakness classification (CWE)

CWE-77 — Command Injection

Public proof-of-concept exploits

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-53355?: CVE-2025-53355 is a high-severity vulnerability in Flux159 Mcp-Server-Kubernetes, classified under Command Injection. CVSS score: 7.5/10. Published 2025-07-08.
How severe is CVE-2025-53355?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2025-53355 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.