CVE-2011-4501
HIGHEPSS 90th pctlDescription
The UPnP IGD implementation in Edimax EdiLinux on the Edimax BR-6104K with firmware before 3.25, Edimax 6114Wg, Canyon-Tech CN-WF512 with firmware 1.83, Canyon-Tech CN-WF514 with firmware 2.08, Sitecom WL-153 with firmware before 1.39, and Sweex LB000021 with firmware 3.15 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.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v2 Vector
No CVSS vector data available.
Exploit Intelligence
High risk: more likely to be exploited than 90% of all known CVEs.
References
Related Vulnerabilities
Other CWE-16 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2004-2687 | High | 9.3 | 88% | - | Fix |
| CVE-2009-2335 | Medium | 5.0 | 85% | - | Fix |
| CVE-2006-3677 | High | 7.5 | 79% | - | Fix |
| CVE-2011-4404 | Medium | 5.0 | 60% | - | - |
| CVE-2006-0848 | Medium | 5.1 | 58% | - | - |
| CVE-2007-3898 | Medium | 6.4 | 52% | - | - |
Common questions
How do I fix CVE-2011-4501?
No published fix for CVE-2011-4501 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2011-4501 being actively exploited?
Not that we know of. CVE-2011-4501 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 4.2% is the estimated probability that it will be exploited in the next 30 days. That is higher than 90% of all scored CVEs.
How severe is CVE-2011-4501?
CVE-2011-4501 has a CVSS v2 base score of 10.0, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
Embed a live status badge for CVE-2011-4501
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.