Get the EPSS (Exploit Prediction Scoring System) probability for one CVE, sourced from FIRST.org. Returns the daily probability (0-1) that the CVE will be exploited in the next 30 days plus a percentile rank. License: FIRST.org free-for-any-use.
AI agents call get_epss_score to retrieve information from TensorFeed without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
cve_id | string | Yes | CVE identifier in CVE-YYYY-NNNNN form |
Parameters from the server's own tool schema.
This is a data retrieval tool that queries vulnerability scoring information. It performs a read-only lookup of existing EPSS metrics without side effects, state modifications, or triggering any external operations. The low severity reflects minimal risk if misused by an AI agent—an attacker could only access publicly available vulnerability scoring data, which does not directly enable or facilitate attacks.
From the tool's definition Tool retrieves and returns EPSS score data from FIRST.org; described as 'Get' operation that returns probability and percentile rank with no ability to modify, delete, or execute actions.
Attacks that exploit this kind of access
Get the EPSS (Exploit Prediction Scoring System) probability for one CVE, sourced from FIRST.org. Returns the daily probability (0-1) that the CVE will be exploited in the next 30 days plus a percentile rank. License: FIRST.org free-for-any-use. It is categorised as a Read tool in the TensorFeed MCP Server, which means it retrieves data without modifying state.
get_epss_score accepts 1 parameter: cve_id. Required: cve_id. The full parameter table on this page comes from the server's own tool schema.
Register the TensorFeed MCP server in PolicyLayer and add a rule for get_epss_score: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches TensorFeed. Nothing to install.
get_epss_score is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_epss_score rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_epss_score. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_epss_score is provided by the TensorFeed MCP server (https://mcp.tensorfeed.ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →