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Fencer Vulns
low 2.6

CVE-2004-1907 json

The Web Filtering functionality in Kerio Personal Firewall (KPF) 4.0.13 allows remote attackers to cause a denial of service (crash) by sen…

published 2004-12-31 21 y ago modified 2026-06-16 4 mo ago also EUVD-2004-1900

cvss
2.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.7%
EPSS 6.7% chance of exploitation in 30 days, percentile 93%
public exploits
1
Exploit-DB

Summary

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".

Timeline

  1. First public exploit (EDB-23925)
  2. Published

Exploit prediction

6.67% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-23925 Kerio Personal Firewall 4.0.x - Web Filtering Remote Denial of Service dos, 2004-04-07
  • archives.neohapsis.com http://archives.neohapsis.com/archives/bugtraq/2004-04/0061.html referenced PoC, tagged "exploit" by a source, unverified
  • securityfocus.com http://www.securityfocus.com/bid/10075 referenced PoC, tagged "exploit" by a source, unverified
  • secunia.com http://secunia.com/advisories/11331 referenced PoC, tagged "exploit" by a source, unverified
  • cipher.org.uk http://www.cipher.org.uk/index.php?p=advisories/HEX-Kerio_Personal_Firewall_Remote_DOS_7-04-2004.advisory referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 2.6 AV:N/AC:H/Au:N/C:N/I:N/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.