# Invalid Port Number in EXPOSE

- ID: docker-invalid-port
- Severity: ERROR
- Languages: Dockerfile
- Frameworks: docker

## Description

Detects invalid port numbers in EXPOSE instructions (valid range: 0-65535).

## Detection Message

EXPOSE uses invalid port number (valid range: 0-65535)

## Remediation

Use a valid port number between 0 and 65535.

```dockerfile
EXPOSE 8080
```

Learn more: https://shoulder.dev/learn/docker/invalid-port

## Documentation

[object Object]

## Related Rules

- **Docker Build Optimization and Best Practices** [LOW]: 
- **Docker Compose Obsolete Version Field** [LOW]: 
- **Docker File Operations Best Practices** [LOW]: 
- **Multiple ENTRYPOINT Instructions** [MEDIUM]: 
- **** [MEDIUM]: