Search the National Vulnerability Database for CVEs - find vulnerabilities by keyword or ID, get CVSS scores, weaknesses, affected configurations, and remediation references.

Apache-2.0Auto-check passedSecurity

Install Nvd Cve

skills CLI
$ npx skills add automateyournetwork/netclaw --skill nvd-cve -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install automateyournetwork/netclaw nvd-cve --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/automateyournetwork/netclaw.git skills-src && mkdir -p .claude/skills && cp -r skills-src/workspace/skills/nvd-cve .claude/skills/nvd-cve && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
nvd-cve
GitHub stars
676
Token cost
~1.8k tokens
SKILL.md length
510 words
Files
1
Skills in repo
120
Repo updated
First seen
Licence
Apache-2.0

At a glance

Search the National Vulnerability Database for CVEs - find vulnerabilities by keyword or ID, get CVSS scores, weaknesses, affected configurations, and remediation references.

  • Works in 8 steps: get_cve — Look Up a Specific CVE by ID → search_cve — Search CVEs by Keyword → Extract Software Version → …
  • Looking up a CVE
  • SKILL.md covers Available Tools, When to Use, Vulnerability Audit Workflow and CVSS Severity Mapping, plus 3 more sections
  • Calls python3; needs NVD_API_KEY

What it does

Nvd Cve is an agent skill from automateyournetwork/netclaw. Search the National Vulnerability Database for CVEs - find vulnerabilities by keyword or ID, get CVSS scores, weaknesses, affected configurations, and remediation references. Use when looking up a CVE, scanning for vulnerabilities, running a security audit, or checking if a software version has known exploits.

Its SKILL.md is about 1.8k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Security, covering Vulnerability scanning. It works with iOS. The repository describes itself as: An AI agent that claws through your network. The licence is Apache-2.0.

When your agent uses it

  • Looking up a CVE
  • Scanning for vulnerabilities
  • Running a security audit
  • Checking if a software version has known exploits

Example prompts

  • “/nvd-cve”

Requirements

  • Python 3
  • A credential in NVD_API_KEY

Workflow steps

8 steps, taken from the step headings in SKILL.md.

  1. get_cve — Look Up a Specific CVE by ID
  2. search_cve — Search CVEs by Keyword
  3. Extract Software Version
  4. Search NVD for Version-Specific CVEs
  5. Get Details for Critical/High CVEs
  6. Exposure Correlation
  7. Produce Vulnerability Report
  8. Search by Feature Keywords

What it can do on your machine

Read from SKILL.md and the folder at commit aa90e7d. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • python3

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • NVD_API_KEY

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Nvd Cve loads about 1.8k tokens when it runs. Until then it costs about 80 tokens; SKILL.md has 510 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~80
When it runs · the whole SKILL.md, loaded when a task matches
~1.8k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from automateyournetwork/netclaw at commit aa90e7d, republished under its Apache-2.0 licence (© automateyournetwork). 510 words, ~1,839 tokens.

Download SKILL.mdSave it as .claude/skills/nvd-cve/SKILL.md (or your agent's skills folder).
name
nvd-cve
description
Search the National Vulnerability Database for CVEs - find vulnerabilities by keyword or ID, get CVSS scores, weaknesses, affected configurations, and remediation references. Use when looking up a CVE, scanning for vulnerabilities, running a security audit, or checking if a software version has known exploits.
license
Apache-2.0
user-invocable
true

Available Tools

1. get_cve — Look Up a Specific CVE by ID
bash
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
bash
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
bash
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}'
Step 3: Get Details for Critical/High CVEs

For each CVE with CVSS >= 7.0, pull full details:

bash
NVD_API_KEY=$NVD_API_KEY python3 $MCP_CALL "python3 -u $NVD_MCP_SCRIPT" get_cve '{"cve_id":"CVE-2023-20198"}'
Step 4: Exposure Correlation

Cross-reference CVE requirements against the device running config:

CVERequiresRunning ConfigExposed?
CVE-2023-20198HTTP/HTTPS server enabledip http server presentYES
CVE-2023-20273Web UI accessibleip http secure-server + no ACLYES
CVE-2024-XXXXXOSPF enabledrouter ospf 1 presentYES
Step 5: Produce Vulnerability Report
Vulnerability Audit — YYYY-MM-DD
Device: R1 | IOS-XE 17.9.4a

CRITICAL (CVSS >= 9.0):
  CVE-2023-20198 (CVSS 10.0) — IOS-XE Web UI privilege escalation
    Exposure: CONFIRMED — ip http server enabled
    Remediation: Upgrade to 17.9.4a+ or disable ip http server

HIGH (CVSS >= 7.0):
  CVE-2023-20273 (CVSS 7.2) — Web UI command injection
    Exposure: CONFIRMED — ip http secure-server, no ACL
    Remediation: Apply access-class to HTTP server or upgrade

MEDIUM (CVSS >= 4.0):
  [none found]

Summary: 2 CRITICAL (2 exposed), 0 HIGH, 0 MEDIUM
Step 6: Search by Feature Keywords

When auditing specific features, search for feature-specific CVEs:

bash
# SNMP vulnerabilities
NVD_API_KEY=$NVD_API_KEY python3 $MCP_CALL "python3 -u $NVD_MCP_SCRIPT" search_cve '{"keyword":"Cisco SNMP remote code execution","results":10}'

# BGP vulnerabilities
NVD_API_KEY=$NVD_API_KEY python3 $MCP_CALL "python3 -u $NVD_MCP_SCRIPT" search_cve '{"keyword":"Cisco BGP denial of service","results":10}'

# SSH vulnerabilities
NVD_API_KEY=$NVD_API_KEY python3 $MCP_CALL "python3 -u $NVD_MCP_SCRIPT" search_cve '{"keyword":"Cisco IOS SSH vulnerability","results":10}'
Show full SKILL.md (219 more words)Show less

CVSS Severity Mapping

CVSS ScoreSeverityAction Timeline
9.0 - 10.0CRITICALImmediate remediation required
7.0 - 8.9HIGHRemediate within 1 change window
4.0 - 6.9MEDIUMRemediate in next maintenance window
0.1 - 3.9LOWDocument and track

Fleet-Wide Vulnerability Scan

Run version discovery across all devices, then batch-search NVD for each unique version:

bash
# Step 1: Get version from each device
PYATS_TESTBED_PATH=$PYATS_TESTBED_PATH python3 $MCP_CALL "${PYATS_PYTHON:-python3} -u $PYATS_MCP_SCRIPT" pyats_run_show_command '{"device_name":"R1","command":"show version"}'

# Step 2: Search NVD for each unique version found
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,"concise":true}'

Produce a fleet vulnerability matrix:

┌──────────┬───────────────────┬──────────┬──────┬──────┬────────┐
│ Device   │ Software Version  │ CRITICAL │ HIGH │ MED  │ Action │
├──────────┼───────────────────┼──────────┼──────┼──────┼────────┤
│ R1       │ IOS-XE 17.9.4a    │ 2        │ 3    │ 5    │ URGENT │
│ R2       │ IOS-XE 17.12.1    │ 0        │ 1    │ 2    │ PLAN   │
│ SW1      │ IOS-XE 16.12.4    │ 5        │ 8    │ 12   │ URGENT │
└──────────┴───────────────────┴──────────┴──────┴──────┴────────┘

GAIT Audit Trail

Record vulnerability scans in GAIT:

bash
python3 $MCP_CALL "python3 -u $GAIT_MCP_SCRIPT" gait_record_turn '{"user_text":"Example only: replace with the actual authorized request.","assistant_text":"NVD vulnerability scan on R1 (IOS-XE 17.9.4a): 2 CRITICAL (CVE-2023-20198, CVE-2023-20273), 3 HIGH, 5 MEDIUM. Both CRITICAL CVEs confirmed exposed via running config analysis.","artifacts":[]}'

Failure Behavior

  • If a tool call fails with an authentication or connection error, check that GAIT_MCP_SCRIPT, MCP_CALL, NVD_API_KEY, NVD_MCP_SCRIPT, PYATS_MCP_SCRIPT are set and valid before assuming a data or device problem.
  • On a tool error (timeout, unreachable host, malformed response), report the failure and its error message directly to the user rather than fabricating or guessing at results.
  • For a confirmed read-only call, check connectivity and retry once if appropriate. For any call that changes state or sends a message, a timeout does not prove the action failed: inspect current state or delivery status before retrying, preserve the required approval/change gates, and do not repeat an action whose outcome is unknown.

Audit examples are illustrative. Replace request, outcomes, identifiers and counts with observed session evidence; do not record these example results as facts. Inspect MCP isError, returned ok, and the recorded turn with gait_show when validating a new client/schema. Follow gait-session-tracking for branch checkout.

© automateyournetwork, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in workspace/skills/nvd-cve of automateyournetwork/netclaw.

Open the folder on GitHubat commit aa90e7d

Compare with similar skills

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Forensifyalexgreensh/repo-forensics190—~2.5kAutomated safety check: NotesCustom licence

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Works with

Categories

Questions about Nvd Cve

What does Nvd Cve do?

Search the National Vulnerability Database for CVEs - find vulnerabilities by keyword or ID, get CVSS scores, weaknesses, affected configurations, and remediation references. Nvd Cve is an agent skill from automateyournetwork/netclaw. Search the National Vulnerability Database for CVEs - find vulnerabilities by keyword or ID, get CVSS scores, weaknesses, affected configurations, and remediation references.

When should I use Nvd Cve?

Nvd Cve fits situations like: looking up a CVE; scanning for vulnerabilities; running a security audit; checking if a software version has known exploits.

How do I install Nvd Cve in Claude Code?

Run `npx skills add automateyournetwork/netclaw --skill nvd-cve -a claude-code`. Or copy the skill folder (workspace/skills/nvd-cve in automateyournetwork/netclaw) into .claude/skills/nvd-cve in your project. Claude Code loads it when a task matches its description.

How do I install Nvd Cve in Codex?

Run `npx skills add automateyournetwork/netclaw --skill nvd-cve -a codex`. Or copy the skill folder (workspace/skills/nvd-cve in automateyournetwork/netclaw) into .agents/skills/nvd-cve in your project. Codex loads it when a task matches its description.

Can I use Nvd Cve in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add automateyournetwork/netclaw --skill nvd-cve -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/nvd-cve, .gemini/skills/nvd-cve, .github/skills/nvd-cve and .opencode/skills/nvd-cve in your project.

What does Nvd Cve need to run?

Going by SKILL.md and its folder, Nvd Cve needs the command-line tools its instructions call (python3) and credentials named NVD_API_KEY. Our summary lists: Python 3; A credential in NVD_API_KEY.

Does Nvd Cve access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Nvd Cve safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Nvd Cve use?

Nvd Cve is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Nvd Cve use?

About 1.8k tokens (SKILL.md is roughly 7.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Nvd Cve?

Skills that share tags, products or a category with Nvd Cve: Deepsec Documentation Guide (vercel-labs/deepsec, 8.1k stars), Shiro Attack CLI (SummerSec/ShiroAttack2, 2.6k stars), Cve Remediation (rundeck/rundeck, 6.3k stars) and Native Dependency Update (mono/SkiaSharp, 5.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Nvd Cve?

automateyournetwork (a GitHub user) maintains it in automateyournetwork/netclaw, which has 676 GitHub stars. The repository holds 120 skills in this directory. The repository was last updated on October 9, 2026.

Source: automateyournetwork/netclaw on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.