CVE-2011-4501: The UPnP IGD implementation in Edimax EdiLinux on the Edimax BR-6104K with firmware before 3.25, Edimax 611...

Security readout for executives and security teams

This CVE affects several older consumer routers whose UPnP internet gateway feature can accept port-mapping requests from the WAN side. In business terms, an external attacker could cause the router to open inbound paths that were not intentionally approved, weakening the network boundary. Exposure is most likely in organizations, branch sites, labs, or homes still using the listed legacy routers with vulnerable firmware and UPnP IGD reachable from the WAN interface. Prioritize if any listed router is still deployed at an internet edge. The affected products are old, so urgency depends on asset presence, but confirmed exposure can undermine perimeter controls. Mitigation focus: Inventory for the listed Edimax, Canyon-Tech, Sitecom, and Sweex router models.; Upgrade Edimax BR-6104K to firmware 3.25 or later where applicable.; Upgrade Sitecom WL-153 to firmware 1.39 or later where applicable..

Prepared

Jun 27, 2026, 17:48 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.