CVE-2003-1491 — HIGH severity vulnerability (Kerio Personal Firewall (KPF) 2.1.4 has a default rule to ac)
Kerio Personal Firewall (KPF) 2.1.4 has a default rule to accept incoming packets from DNS (UDP port 53), which allows remote attackers to bypass the firewall filters via packets with a source port of 53.
| CVE ID | CVE-2003-1491 |
|---|---|
| Severity | HIGH |
| CVSS score | 7.5 |
| CVSS vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| CWE | CWE-16, CWE-94 |
| Status | Modified |
| Published | 2003-12-31 |
| Last modified | 2026-04-16 |
| Description | Kerio Personal Firewall (KPF) 2.1.4 has a default rule to accept incoming packets from DNS (UDP port 53), which allows remote attackers to bypass the firewall filters via packets with a source port of 53. |
| Source | NIST National Vulnerability Database |
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