CVE-2004-1109 EXPLOIT
5.0
MEDIUM · CVSS 2.0 · EPSS 3.2% (pctl 88)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 5.0 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| EPSS | 3.24% — more likely to be exploited than 88% of all CVEs |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2005-01-10 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| kerio | personal firewall |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Kerio Personal Firewall 4.1.1 - Multiple IP Options Denial of Service Vulnerabilities | 2004-11-12 |
References
- http://www.eeye.com/html/research/advisories/AD20041109.html
- http://www.kerio.com/security_advisory.html
- http://www.securityfocus.com/bid/11639
- https://exchange.xforce.ibmcloud.com/vulnerabilities/17992
- http://www.eeye.com/html/research/advisories/AD20041109.html
- http://www.kerio.com/security_advisory.html
- http://www.securityfocus.com/bid/11639
- https://exchange.xforce.ibmcloud.com/vulnerabilities/17992
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