Current Description

The 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 freeze from infinite loop) via a (1) TCP, (2) UDP, or (3) ICMP packet with a zero length IP Option field.

Basic Data

PublishedJanuary 10, 2005
Last ModifiedJuly 11, 2017
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeNVD-CWE-Other
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 2 - Access VectorNETWORK
CVSS 2 - Access ComplexityLOW
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactNONE
CVSS 2 - Availability ImpactPARTIAL
CVSS 2 - Base Score5.0
Exploitability Score10.0
Impact Score2.9
Obtain All Privilegefalse
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

No data provided.


  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3ApplicationKerioPersonal Firewall4.0.6*******
    2.3ApplicationKerioPersonal Firewall4.0.7*******
    2.3ApplicationKerioPersonal Firewall4.0.8*******
    2.3ApplicationKerioPersonal Firewall4.0.9*******
    2.3ApplicationKerioPersonal Firewall4.0.10*******
    2.3ApplicationKerioPersonal Firewall4.0.16*******
    2.3ApplicationKerioPersonal Firewall4.1*******
    2.3ApplicationKerioPersonal Firewall4.1.1*******

Vulnerable Software List

Kerio Personal Firewall 4.0.10, 4.0.16, 4.0.6, 4.0.7, 4.0.8, 4.0.9, 4.1, 4.1.1


AD20041109 Advisory
11639 Patch Vendor Advisory