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    CVE-2011-4499

    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.

    Published:Nov 22, 2011
    Last Modified:Apr 11, 2025
    EPS:Nov 22, 2011
    EPSS Score:0.00474
    CVSS Score:7.5

    Affected Products

    Vendor
    Cisco
    Product
    Linksys Wrt54g Router Firmware
    Vendor
    Cisco
    Product
    Linksys Wrt54gs Router Firmware
    Vendor
    Linksys
    Product
    Wrt54g
    Vendor
    Linksys
    Product
    Wrt54gs

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High