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CVE-2006-3787

2.1 · LOW

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 bypa…

Published Jul 24, 2006kerioEPSS 0.71%

Overview

CVE-2006-3787 is a low-severity vulnerability affecting kerio personal_firewall. It was published on July 24, 2006 and has a CVSS 2.0 base score of 2.1 (LOW).

This vulnerability has a CVSS 2.0 base score of 2.1, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from kerio. Update personal_firewall to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
keriopersonal_firewall0Affected

References

Refsecunia.com/advisories/21060Refsecurityreason.com/securityalert/1260Refwww.matousec.com/info/advisories/Kerio-Terminating-kpf4ss-exe-using-internal-runtime-error.phpRefwww.securityfocus.com/archive/1/440112/100/100/threadedRefwww.securityfocus.com/bid/18996Refwww.vupen.com/english/advisories/2006/2828Refsecunia.com/advisories/21060Refsecurityreason.com/securityalert/1260Refwww.matousec.com/info/advisories/Kerio-Terminating-kpf4ss-exe-using-internal-runtime-error.phpRefwww.securityfocus.com/archive/1/440112/100/100/threaded

How CyberStrike helps

Frequently asked questions

What is CVE-2006-3787?

CVE-2006-3787 is a low-severity vulnerability affecting kerio personal_firewall. It was published on July 24, 2006 and has a CVSS 2.0 base score of 2.1 (LOW).

How severe is CVE-2006-3787?

This vulnerability has a CVSS 2.0 base score of 2.1, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2006-3787?

Check the references section for vendor advisories and patches from kerio. Update personal_firewall to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2006-3787?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2006-3787 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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