CVE-2006-3787

Kerio Personal Firewall < 4.3.268 - Denial of Service via CreateRemoteThread API Hook Bypass

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2006-3787. PoCs published by David Matousek.

AI-analyzed exploit summary The provided text describes a denial-of-service vulnerability in Sunbelt Kerio Personal Firewall, triggered by the 'CreateRemoteThread' Windows API call. It lacks actual exploit code but includes details about affected versions and a link to a binary exploit.

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.

Exploits (1)

exploitdb WRITEUP VERIFIED
by David Matousek · textdoshardware
https://www.exploit-db.com/exploits/28228

The provided text describes a denial-of-service vulnerability in Sunbelt Kerio Personal Firewall, triggered by the 'CreateRemoteThread' Windows API call. It lacks actual exploit code but includes details about affected versions and a link to a binary exploit.

Classification
Writeup 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Theoretical
Target: Sunbelt Kerio Personal Firewall versions 4.3.246 and possibly others after 4.2.3.912
No auth needed
Prerequisites: Ability to execute the 'CreateRemoteThread' API call on the target system
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2006/2828
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/18996
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/440112/100/100/threaded
Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/1260
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/21060

Scores

EPSS 0.0071
EPSS Percentile 49.0%

Details

Status published
Products (1)
kerio/personal_firewall < 4.3.246
Published Jul 24, 2006
Tracked Since Feb 18, 2026