Is CVE-2011-4501 actively exploited?

No active exploitation of CVE-2011-4501 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2011-4501 be exploited remotely?

Yes. CVE-2011-4501 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2011-4501?

CVE-2011-4501 has a CVSS score of 10.0 (CRITICAL).

HOME VULNERABILITIESCVE-2011-4501

CRITICAL

CVE-2011-4501

CWE-16Published: November 22, 2011· Updated: Jun 16, 2026

10.0

CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2011-4501 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.