CVE-2011-4499

Description

The UPnP IGD implementation in the Broadcom UPnP stack on the Cisco Linksys WRT54G with firmware before 4.30.5, WRT54GS v1 through v3 with firmware before 4.71.1, and WRT54GS v4 with firmware before 1.06.1 allows remote attackers to establish arbitrary port mappings by sending a UPnP AddPortMapping action in a SOAP request to the WAN interface, related to an "external forwarding" vulnerability.

Category

7.5
CVSS
Severity: High
CVSS 2.0 •
EPSS 0.33%
Third-Party Advisory cert.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.upnp-hacks.org/devices.html
http://www.kb.cert.org/vuls/id/357851 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2011-4499?
CVE-2011-4499 has been scored as a high severity vulnerability.
How to fix CVE-2011-4499?
To fix CVE-2011-4499, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-4499 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-4499 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.