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Vulnerability record · CVE-2006-5153 · published 5 October 2006

CVE-2006-5153: Kerio personal firewall vulnerability

Kerio · Personal Firewall

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.

5.0 CVSS 2.0 Medium EPSS 1.6% · top 25.7%
5.0CVSS 2.0 base score
1.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

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.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://secunia.com/advisories/22234 Vendor Advisory
http://securityreason.com/securityalert/1685
http://securitytracker.com/id?1016967
http://www.matousec.com/info/advisories/Kerio-Multiple-insufficient-argument-validation-of-hooked-SSDT-functions.php ExploitVendor Advisory
http://www.securityfocus.com/archive/1/447504/100/0/threaded
http://www.securityfocus.com/bid/20299 Exploit
http://www.vupen.com/english/advisories/2006/3872
https://exchange.xforce.ibmcloud.com/vulnerabilities/29313
http://secunia.com/advisories/22234 Vendor Advisory
http://securityreason.com/securityalert/1685
http://securitytracker.com/id?1016967
http://www.matousec.com/info/advisories/Kerio-Multiple-insufficient-argument-validation-of-hooked-SSDT-functions.php ExploitVendor Advisory
http://www.securityfocus.com/archive/1/447504/100/0/threaded
http://www.securityfocus.com/bid/20299 Exploit
http://www.vupen.com/english/advisories/2006/3872
https://exchange.xforce.ibmcloud.com/vulnerabilities/29313

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2005-1062Kerio mailserver vulnerabilityThe administration protocol for Kerio WinRoute Firewall 6.x up to 6.0.10, Personal Firewall 4.x up to 4.1.2, and MailServer up to 6.0.8 allows remote…EPSS 2.6%7.5CVE-2003-1491Kerio personal firewall code injection vulnerabilityKerio Personal Firewall (KPF) 2.1.4 has a default rule to accept incoming packets from DNS (UDP port 53), which allows remote attackers to bypass the…EPSS 2.4%7.2CVE-2004-2329Kerio personal firewall vulnerabilityKerio Personal Firewall (KPF) 2.1.5 allows local users to execute arbitrary code with SYSTEM privileges via the Load button in the Firewall Configura…EPSS 0.56%5.0CVE-2005-1063Kerio mailserver vulnerabilityThe administration protocol for Kerio WinRoute Firewall 6.x up to 6.0.10, Personal Firewall 4.x up to 4.1.2, and MailServer up to 6.0.8 allows remote…EPSS 1.6%5.0CVE-2004-1109Kerio personal firewall vulnerabilityThe FWDRV.SYS driver in Kerio Personal Firewall 4.1.1 and earlier allows remote attackers to cause a denial of service (CPU consumption and system fr…EPSS 3.2%5.0CVE-2002-2161Kerio personal firewall vulnerabilityKerio Personal Firewall (KPF) 2.1.4 and earlier allows remote attackers to cause a denial of service (hang and CPU consumption) via a SYN packet floo…EPSS 1.6%4.6CVE-2005-0964Kerio personal firewall vulnerabilityUnknown vulnerability in Kerio Personal Firewall 4.1.2 and earlier allows local users to bypass firewall rules via a malicious process that impersona…EPSS 0.34%4.6CVE-2004-1658Kerio personal firewall vulnerabilityKerio Personal Firewall 4.0 (KPF4) allows local users with administrative privileges to bypass the Application Security feature and execute arbitrary…EPSS 0.92%

Source: NIST National Vulnerability Database (record CVE-2006-5153), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.