CVE-2003-1491

Kerio Personal Firewall 2.1.4 - Unauthenticated Firewall Bypass via DNS Source Port

Title source: llm
STIX 2.1

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.

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/7436
Third Party Advisory mailing-list x_refsource_fulldisc
http://archives.neohapsis.com/archives/fulldisclosure/2003-q2/0352.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/11880

Scores

EPSS 0.0237
EPSS Percentile 81.8%

Details

CWE
CWE-16 CWE-94
Status published
Products (1)
kerio/personal_firewall 2.1.4
Published Dec 31, 2003
Tracked Since Feb 18, 2026