Vulncheck CLI
Use the VulnCheck CLI to query vulnerability and exploit intelligence. Invoke when the user asks about listing or querying VulnCheck indices, security advisories, vendor advisories, CVE lookups, downloading index backups, known exploited vulnerabilities, KEV, CISA KEV, NVD, package security, PURL lookups (npm, pypi, maven, cargo, golang, nuget), CPE lookups, scanning a project or directory for vulnerable dependencies, exploits, Initial Access Intelligence, detection rules (Snort, Suricata), IP intelligence, C2 infrastructure, botnet tracking, protective DNS, or offline vulnerability scanning.
From the source SKILL.md
If not authenticated, run vulncheck auth login before proceeding.
What this skill does
Vulncheck CLI is a community-contributed Claude Code skill in the network-security sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/vulncheck-cli/ and loads when your prompt matches the skill's trigger.
Who uses this skill
The Vulncheck CLI Claude Code skill is built for security engineers, penetration testers, DevSecOps practitioners, and development teams hardening codebases and infrastructure. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 117,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
How to install
Free
Manual install (2 steps)
mkdir -p ~/.claude/skills/vulncheck-cli
curl -L https://claudskills.com/skills/vulncheck-cli/SKILL.md \
-o ~/.claude/skills/vulncheck-cli/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/vulncheck-cli/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/vulncheck-cli/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\vulncheck-cli\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Telegram
📱 Install from your phone or desktop Telegram
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
Pro
One-click install via the desktop app
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
Pro
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
Frequently asked questions
How do I install the Vulncheck CLI Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy
SKILL.md from the source repository to
~/.claude/skills/vulncheck-cli/SKILL.md and restart Claude Code. Both flows are detailed at
claudskills.com/install/.
What does the Vulncheck CLI skill do?
Use the VulnCheck CLI to query vulnerability and exploit intelligence. Invoke when the user asks about listing or querying VulnCheck indices, security advisories, vendor advisories, CVE lookups, downloading index backups, known exploited vulnerabilities, KEV, CISA KEV, NVD, package security, PURL lookups (npm, pypi, maven, cargo, golang, nuget), CPE lookups, scanning a project or directory for vulnerable dependencies, exploits, Initial Access Intelligence, detection rules (Snort, Suricata), IP intelligence, C2 infrastructure, botnet tracking, protective DNS, or offline vulnerability scanning.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Vulncheck CLI skill?
Use Vulncheck CLI when your Claude Code task falls under the Security category — specifically in the network security area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Vulncheck CLI" or describe the task and let Claude pick). Browse related skills at
/category/security/.
What is a Claude Code skill and how does the Vulncheck CLI skill fit in?
A Claude Code skill is a
SKILL.md file that lives under
~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Vulncheck CLI is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Security category. Learn more at
/learn/what-is-a-claude-skill/.
Attribution & license
Cite this skill
If you reference this skill in a blog post, paper, or documentation, you can cite it as:
APA
vulncheck-oss. (2026). Vulncheck CLI [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/vulncheck-cli/
BibTeX
@misc{vulncheck-cli-2026,
author = {vulncheck-oss},
title = {Vulncheck CLI [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/vulncheck-cli/}
}Embed this skill
Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →
Badge
[](https://claudskills.com/skills/vulncheck-cli/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/vulncheck-cli.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/vulncheck-cli.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Vulncheck CLI"></iframe>
More Security skills
Browse all Security skills in the ClaudSkills registry, or explore these other picks from the same category:
Part of Acreator Store — Adam Lankamer's AI tools:
PerfectStudio ·
Ucaption ·
UTagger ·
AutoXPoster ·
TestYourSkills ·
AutomationFlows ·
Au Naturel ·
Telegram @acreatorstore