PatchTheCVECVE-2006-3787: kpf4ss.exe in Sunbelt Kerio Personal Firewall 4.3.x before 4.3.268 does not properly hook the CreateRemoteThre
CVE-2006-3787 is a low-severity flaw (CVSS 2.1) affecting personal firewall. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 2.1 (Low) |
| EPSS exploit chance | 0.7% (top 46%) |
| CISA exploited list | No |
| Published | 2006-07-24 |
| Last modified | 2026-06-16 |
Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2006-3787?
personal firewall: upgrade to newer than 4.3.246. Exact commands for each OS are on this page.
Is CVE-2006-3787 being exploited?
CVE-2006-3787 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2006-3787 affect?
CVE-2006-3787 affects personal firewall. Severity is low (CVSS 2.1). 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 CreateR
How urgent is CVE-2006-3787?
Priority 26/100. Public exploit reference
Related CVEs
- CVE-2009-2450 HIGH 7.2 UPGRADE UPGRADE The OAmon.sys kernel driver 3.1.0.0 and earlier in Tall Emu Online Armor Personal Firewall AV+ before 3.5.0.12
- CVE-2008-3174 MEDIUM 5.0 DOWNGRADE DOWNGRADE Unspecified vulnerability in the kmxfw.sys driver in CA Host-Based Intrusion Prevention System (HIPS) r8, as u
- CVE-2007-4967 MEDIUM 4.4 DOWNGRADE Online Armor Personal Firewall 2.0.1.215 does not properly validate certain parameters to System Service Descr
- CVE-2006-6623 HIGH 7.2 DOWNGRADE DOWNGRADE Sygate Personal Firewall 5.6.2808 relies on the Process Environment Block (PEB) to identify a process, which a
- CVE-2006-6622 HIGH 7.2 DOWNGRADE DOWNGRADE Soft4Ever Look 'n' Stop (LnS) 2.05p2 before 20061215 relies on the Process Environment Block (PEB) to identify