CIRCL CVE SEARCH MCP Server

Created By

Cyreslab-AI6 months ago

MCP server for CIRCL CVE Search API with intelligent risk assessment and comprehensive vulnerability analysis.

Content

CIRCL CVE SEARCH MCP Server

A Model Context Protocol (MCP) server for accessing the CIRCL CVE SEARCH API, providing comprehensive vulnerability and security information.

Features

This MCP server provides reliable tools to access:

CVE Information: Get detailed information about specific Common Vulnerabilities and Exposures
Vendor Browsing: Browse CVEs by vendor name to discover security issues in specific vendors' products
CWE Information: Get Common Weakness Enumeration information for understanding vulnerability types
CAPEC Information: Get Common Attack Pattern Enumeration and Classification data for understanding attack methods

Key Improvements

Retry Logic: Automatic retry with exponential backoff for reliable API calls
Enhanced Formatting: Structured, readable response formatting with key information highlighted
Better Error Handling: Clear, actionable error messages with troubleshooting guidance
Input Validation: Comprehensive validation and sanitization of all inputs

Installation

npm install @cyreslab/circl-cve-search-mcp-server

Usage

Add this server to your MCP client configuration:

{
  "mcpServers": {
    "circl-cve-search": {
      "command": "npx",
      "args": ["@cyreslab/circl-cve-search-mcp-server"]
    }
  }
}

Available Tools

get_cve

Get detailed information about a specific CVE by its ID.

Parameters:

cve_id (required): CVE identifier (e.g., "CVE-2021-44228")

Example:

{
  "name": "get_cve",
  "arguments": {
    "cve_id": "CVE-2021-44228"
  }
}

Response Format:

Structured CVE data with key information highlighted
Summary, publication dates, CVSS scores
Associated weakness types (CWE) and reference counts
Full raw data for detailed analysis

browse_vendor

Browse CVEs by vendor name to discover security issues in specific vendors' products.

Parameters:

vendor (required): Vendor name (e.g., "apache", "microsoft", "google")
limit (optional): Number of results to return (default: 10, max: 50)

Example:

{
  "name": "browse_vendor",
  "arguments": {
    "vendor": "apache",
    "limit": 15
  }
}

Response Format:

List of CVEs for the specified vendor
Total count and displayed count
Vendor name normalization

get_cwe

Get Common Weakness Enumeration (CWE) information by ID.

Parameters:

cwe_id (required): CWE identifier (e.g., "CWE-79", "CWE-89")

Example:

{
  "name": "get_cwe",
  "arguments": {
    "cwe_id": "CWE-79"
  }
}

Response Format:

CWE name and detailed description
Extended descriptions and weakness ordinalities
Likelihood of exploit information
Full raw data for comprehensive analysis

get_capec

Get Common Attack Pattern Enumeration and Classification (CAPEC) information by ID.

Parameters:

capec_id (required): CAPEC identifier (e.g., "CAPEC-66", "CAPEC-89")

Example:

{
  "name": "get_capec",
  "arguments": {
    "capec_id": "CAPEC-66"
  }
}

Response Format:

Attack pattern name and description
Typical severity and likelihood of attack
Prerequisites and related weaknesses
Complete raw data for in-depth analysis

Data Source

This server uses the CIRCL CVE SEARCH API, which provides:

Comprehensive CVE data from the National Vulnerability Database (NVD)
Common Platform Enumeration (CPE) information
Common Weakness Enumeration (CWE) data
Common Attack Pattern Enumeration and Classification (CAPEC) data
Regular updates with the latest vulnerability information

Rate Limiting

The CIRCL CVE SEARCH API is free to use and doesn't require authentication. However, please use it responsibly and avoid making excessive requests that could impact the service.