CVE-2006-5420: Medium severity Kerio Winroute Firewall vulnerability

Published Oct 20, 2006
·
Updated

Kerio WinRoute Firewall 6.2.2 and earlier allows remote attackers to cause a denial of service (crash) via malformed DNS responses.

Affected Software

42 affected components
Kerio Winroute Firewall=5.1.5
Kerio Winroute Firewall=6.1.4_patch_1
Kerio Winroute Firewall=6.1.1
Kerio Winroute Firewall=5.1.2
Kerio Winroute Firewall=6.2
Kerio Winroute Firewall=5.0.4
Kerio Winroute Firewall=5.0.1
Kerio Winroute Firewall=5.1.1
Kerio Winroute Firewall=6.0.1
Kerio Winroute Firewall=6.0.4
Kerio Winroute Firewall=6.0.3
Kerio Winroute Firewall=5.0.9
Kerio Winroute Firewall=6.0.9
Kerio Winroute Firewall=5.0.3
Kerio Winroute Firewall=6.0.6
Kerio Winroute Firewall<=6.2.2
Kerio Winroute Firewall=6.0
Kerio Winroute Firewall=5.1.7
Kerio Winroute Firewall=6.1.2
Kerio Winroute Firewall=5.1.8
Kerio Winroute Firewall=5.1
Kerio Winroute Firewall=5.0.5
Kerio Winroute Firewall=5.0.2
Kerio Winroute Firewall=6.1.4
Kerio Winroute Firewall=6.0.5
Kerio Winroute Firewall=5.1.3
Kerio Winroute Firewall=5.1.9
Kerio Winroute Firewall=5.0.6
Kerio Winroute Firewall=6.0.2
Kerio Winroute Firewall=6.1.3
Kerio Winroute Firewall=6.0.8
Kerio Winroute Firewall=5.1.10
Kerio Winroute Firewall=5.1.4
Kerio Winroute Firewall=6.0.7
Kerio Winroute Firewall=6.0.11
Kerio Winroute Firewall=5.10
Kerio Winroute Firewall=5.0.8
Kerio Winroute Firewall=6.1.4_patch_2
Kerio Winroute Firewall=5.1.6
Kerio Winroute Firewall=6.1
Kerio Winroute Firewall=5.0.7
Kerio Winroute Firewall=6.2.1

Event History

Oct 20, 2006
CVE Published
via MITRE·02:00 PM
Data Sourced
via MITRE·02:00 PM
Description
Data Sourced
via NVD·02:07 PM
DescriptionSeverityAffected Software
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2006-5420?

CVE-2006-5420 is classified as a high severity vulnerability due to its potential to cause a denial of service.

2

How does CVE-2006-5420 affect Kerio WinRoute Firewall?

CVE-2006-5420 allows remote attackers to crash Kerio WinRoute Firewall by sending malformed DNS responses.

3

What versions of Kerio WinRoute Firewall are affected by CVE-2006-5420?

CVE-2006-5420 affects Kerio WinRoute Firewall versions 6.2.2 and earlier as well as various other prior versions.

4

How can I mitigate CVE-2006-5420?

To mitigate CVE-2006-5420, it's essential to upgrade to a patched version of Kerio WinRoute Firewall that addresses this vulnerability.

5

Is there a patch available for CVE-2006-5420?

Yes, Kerio has released updates that patch CVE-2006-5420, and users should apply these updates promptly.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203