CVE-2004-1907

CVE-2004-1907 is a low-severity vulnerability with a CVSS 2.0 base score of 2.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The Web Filtering functionality in Kerio Personal Firewall (KPF) 4.0.13 allows remote attackers to cause a denial of service (crash) by sending hex-encoded URLs containing "%13%12%13".

Frequently asked questions

What is CVE-2004-1907?
The Web Filtering functionality in Kerio Personal Firewall (KPF) 4.0.13 allows remote attackers to cause a denial of service (crash) by sending hex-encoded URLs containing "%13%12%13".
How severe is CVE-2004-1907?
CVE-2004-1907 has a CVSS 2.0 base score of 2.6, rated low severity.
Is CVE-2004-1907 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2004-1907?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-1907 published?
CVE-2004-1907 was published on 2004-12-31 and last updated on 2026-06-16.

References