CVE-2011-4499

Cisco Linksys WRT54G and WRT54GS - Unauthenticated Arbitrary Port Mapping via UPnP AddPortMapping Action

Title source: llm
STIX 2.1

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.

References (2)

Core 2
Core References
Various Sources x_refsource_misc
http://www.upnp-hacks.org/devices.html
US Government Resource third-party-advisory x_refsource_cert-vn
http://www.kb.cert.org/vuls/id/357851

Scores

EPSS 0.0047
EPSS Percentile 65.0%

Details

CWE
CWE-16
Status published
Products (11)
cisco/linksys_wrt54g_router_firmware 3.03.9
cisco/linksys_wrt54g_router_firmware 4.20.7
cisco/linksys_wrt54g_router_firmware < 4.20.8
cisco/linksys_wrt54gs_router_firmware 2.09.1
cisco/linksys_wrt54gs_router_firmware < 4.70.6
linksys/wrt54g
linksys/wrt54g 2.2
linksys/wrt54gs 1.0
linksys/wrt54gs 2.0
linksys/wrt54gs 3.0
... and 1 more
Published Nov 22, 2011
Tracked Since Feb 18, 2026