A lookup tool for the National Vulnerability Database, a public catalogue of software security flaws. It finds CVEs, which are standardized vulnerability records, and shows scores, affected versions, weaknesses, and references.

Use it to look up a specific CVE or search by software name and version, then review severity, affected configurations, exploits, patches, and vendor references.

It removes the need to search vulnerability records manually or compare scattered advisories. It helps determine whether a product or version has a known security problem.

nvd-cve — Skill for Claude Code by automateyournetwork

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add automateyournetwork/netclaw --skill nvd-cve

Clone the repo

git clone --depth 1 https://github.com/automateyournetwork/netclaw

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/automateyournetwork/netclaw/nvd-cve/github.svg)](https://agentmods.dev/skills/automateyournetwork/netclaw/nvd-cve)

Your own site

<a href="https://agentmods.dev/skills/automateyournetwork/netclaw/nvd-cve"><img src="https://agentmods.dev/badge/skills/automateyournetwork/netclaw/nvd-cve/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/automateyournetwork/netclaw/nvd-cve"><img src="https://agentmods.dev/badge/skills/automateyournetwork/netclaw/nvd-cve.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,899 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00063	$0.01899
Opus 5	$0.00032	$0.00949
Sonnet 5	$0.00013	$0.00380
Haiku 4.5	$0.00006	$0.00190

Measured 9d ago against content hash 520c5395fccb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

nvd-cve scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

workspace/skills/nvd-cve/SKILL.md · 160 lines

How it starts

The opening of the file, as written. The whole thing — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.

NVD CVE Vulnerability Search

Available Tools

1. `get_cve` — Look Up a Specific CVE by ID

NVD_API_KEY=$NVD_API_KEY python3 $MCP_CALL "python3 -u $NVD_MCP_SCRIPT" get_cve '{"cve_id":"CVE-2023-20198"}'

Parameters:

cve_id (required): The CVE identifier, e.g., CVE-2023-20198
concise (optional, default false): Set true for brief output (ID, description, CVSS score only)

Returns: Full CVE details including:

CVSS v3.1 and v2.0 scores, severity, vector string
Exploitability and impact scores
CWE weakness identifiers
References with tags (Vendor Advisory, Patch, Exploit, etc.)
Affected configurations (CPE entries)

2. `search_cve` — Search CVEs by Keyword

NVD_API_KEY=$NVD_API_KEY python3 $MCP_CALL "python3 -u $NVD_MCP_SCRIPT" search_cve '{"keyword":"Cisco IOS XE 17.9"}'

Parameters:

keyword (required): Search term, e.g., "Cisco IOS XE", "NX-OS 10.2", "OpenSSL 3.0"
exact_match (optional, default false): Require exact keyword match
concise (optional, default false): Brief output per CVE
results (optional, default 10): Number of results to return (max 2000)

Returns: List of matching CVEs with full details, plus total count.

When to Use

Post-health-check vulnerability scan: After show version reveals the IOS-XE/NX-OS version, search NVD for known CVEs
Security audit enrichment: Cross-reference running config features (HTTP server, SNMP, SSH) against CVEs
Incident response: Look up specific CVE IDs mentioned in advisories
Compliance reporting: Document known vulnerabilities and remediation status
Upgrade planning: Compare CVE exposure between current and target versions

Vulnerability Audit Workflow

Step 1: Extract Software Version

From a device health check, extract the software version (e.g., IOS-XE 17.9.4a).

Step 2: Search NVD for Version-Specific CVEs

NVD_API_KEY=$NVD_API_KEY python3 $MCP_CALL "python3 -u $NVD_MCP_SCRIPT" search_cve '{"keyword":"Cisco IOS XE 17.9.4","results":20}'

Read the full file on GitHub · 160 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

9d ago First seen · 160 lines · 63 tokens per session scan A 520c5395fccb

Subscribe to this mod's changes

nvd-cve is a skill published in the GitHub repository automateyournetwork/netclaw (657 stars, last pushed 6d ago), licensed Apache-2.0. It adds 63 tokens to every session and 1,899 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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