CVE-2006-2559

Name: CVE-2006-2559
Creator: NVD / NIST
Published: 2006-05-24T01:02:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.70%

Last modified Jun 16, 2026

CVE-2006-2559 is a vulnerability of currently unknown severity. Linksys WRT54G Wireless-G Broadband Router allows remote attackers to bypass access restrictions and conduct unauthorized operations via a UPnP request with a modified InternalClient parameter, which is not validated, as demonstrated by using AddPortMapping to forward arbitrary traffic.. EPSS estimates a 1.70% chance of exploitation in the next 30 days.

Description

Linksys WRT54G Wireless-G Broadband Router allows remote attackers to bypass access restrictions and conduct unauthorized operations via a UPnP request with a modified InternalClient parameter, which is not validated, as demonstrated by using AddPortMapping to forward arbitrary traffic.

Metrics

EPSS Probability

1.70%

74.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Linksys	Wrt54g	1.42.3
Linksys	Wrt54g	2.00.8
Linksys	Wrt54g	2.02.7
Linksys	Wrt54g	2.04.4
Linksys	Wrt54g	2.04.4_non_default
Linksys	Wrt54g	3.01.3
Linksys	Wrt54g	3.03.6
Linksys	Wrt54g	4.00.7
Linksys	Wrt54g V5	All versions

References

http://secunia.com/advisories/20161Patch, Vendor Advisory
http://securitytracker.com/id?1016134
http://www.securityview.org/dutch-student-finds-a-bug-in-upnp.htmlURL Repurposed
http://www.securityview.org/how-does-the-upnp-flaw-works.htmlURL Repurposed
http://www.vupen.com/english/advisories/2006/1909
https://exchange.xforce.ibmcloud.com/vulnerabilities/26707
http://secunia.com/advisories/20161Patch, Vendor Advisory
http://securitytracker.com/id?1016134
http://www.securityview.org/dutch-student-finds-a-bug-in-upnp.htmlURL Repurposed
http://www.securityview.org/how-does-the-upnp-flaw-works.htmlURL Repurposed
http://www.vupen.com/english/advisories/2006/1909
https://exchange.xforce.ibmcloud.com/vulnerabilities/26707

Timeline

Published: May 24, 2006
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2006-2559?

How severe is CVE-2006-2559?

Severity scoring for CVE-2006-2559 is pending analysis. The EPSS model estimates a 1.70% probability of exploitation in the next 30 days.

How do I fix CVE-2006-2559?

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.

Are you affected by CVE-2006-2559?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST