CVE-2003-1491
UnknownEPSS 2.37%
Last modified
CVE-2003-1491 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.37% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Kerio | Personal Firewall | 2.1.4 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2003-1491?
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.
How severe is CVE-2003-1491?
Severity scoring for CVE-2003-1491 is pending analysis. The EPSS model estimates a 2.37% probability of exploitation in the next 30 days.
How do I fix CVE-2003-1491?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Are you affected by CVE-2003-1491?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST