Cloud security intelligence for modern infrastructure.

Stay informed

📬 Product updates & blog posts🛡️ CVE alerts & security advisories

Frequency:

Sent from noreply@echelongraph.io · Unsubscribe anytime

Product

Overview
Enterprise
Agents
AI Analyst
Pricing
Compare
vs. Competitors

Resources

CVE Pulse
Compliance Directory
Newsletter
Documentation
Readiness Calculator
Blog

Security Tools

Surface Scanner
AI Security Index
AI Threat Map
Shadow AI Radar
Shadow Engine Map

Company

Design Partners
Changelog
Contact

Legal

Privacy
Terms
Security
DPA

SOC 2 Type IIISO 27001GDPRHIPAA Ready

Home›CVE Pulse›CVE-2003-1491

CVE-2003-1491

NONECVSS 0.0

0.0

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.

📅 Published

December 31, 2003

🔄 Last Modified

April 16, 2026

🔗 References (8)

cve@mitrehttp://archives.neohapsis.com/archives/fulldisclosure/2003-q2/0352.html
cve@mitrehttp://www.securiteam.com/securitynews/5FP0N1P9PI.html
cve@mitrehttp://www.securityfocus.com/bid/7436
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/11880
af854a3a-2127-422b-91ae-364da2661108http://archives.neohapsis.com/archives/fulldisclosure/2003-q2/0352.html
af854a3a-2127-422b-91ae-364da2661108http://www.securiteam.com/securitynews/5FP0N1P9PI.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/7436
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/11880

💥

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2003-1491

Explore →

Is Your Infrastructure Affected by CVE-2003-1491?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs