Nuclei
Template-based vulnerability scanner.
KaliParrothigh
pkg: nuclei
Nuclei runs thousands of community YAML templates for CVEs, misconfigurations and exposures, with low false positives and high speed.
Syntax
nuclei -u {url} [-severity ...]
Example
nuclei -u https://example.com -severity high,critical
Runs only high/critical templates against the target URL.
Options & flags
What each switch does. Toggle them in the builder below to assemble a command.
Command builder
Tick options (and fill any values) to build a ready-to-copy command.
nuclei
Usage examples
nuclei -u https://target.tld -severity high,critical
Run only high/critical templates.
nuclei -l urls.txt -tags cve -o out.txt
Scan many hosts for CVEs and save results.
Advantages
- Huge, frequently-updated template set
- Fast and accurate
- Easy to write custom templates
Disadvantages
- Active and potentially intrusive
- Template quality varies — verify hits
- High request volume
Tags
#cve#templates#web
Official docs: Nuclei ↗
Related commands
Frequently asked questions
What is Nuclei used for?
Nuclei runs thousands of community YAML templates for CVEs, misconfigurations and exposures, with low false positives and high speed.
What is an example Nuclei command?
A common example is: nuclei -u https://example.com -severity high,critical — Runs only high/critical templates against the target URL.
Is Nuclei part of Kali Linux?
Yes. Nuclei ships with Kali Linux (and Parrot OS). If missing, install it with: sudo apt install nuclei.
What category of security tool is Nuclei?
Nuclei is a Vulnerability Analysis tool with a high-risk profile when run against a live target.
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