CVE-2006-5153: Kerio Personal Firewall

Medium severity, CVSS 5.0. EPSS: 1.6% chance of exploitation in the next 30 days.

The (1) fwdrv.sys and (2) khips.sys drivers in Sunbelt Kerio Personal Firewall 4.3.268 and earlier do not validate arguments passed through to SSDT functions, including NtCreateFile, NtDeleteFile, NtLoadDriver, NtMapViewOfSection, NtOpenFile, and NtSetInformationFile, which allows local users to cause a denial of service (crash) and possibly other impacts via unspecified vectors.

Affected products

• Kerio Personal Firewall: version 4.0.6 only; version 4.0.7 only; version 4.0.8 only; version 4.0.9 only; version 4.0.10 only; version 4.0.11 only; …

Published 2006-10-05. Last modified 2026-06-16.