CVE-2004-1109

high

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.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/17992

http://www.kerio.com/security_advisory.html

http://www.eeye.com/html/research/advisories/AD20041109.html

Details

Source: Mitre, NVD

Published: 2005-01-10

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.04891