VYPR
Unrated severityNVD Advisory· Published Nov 22, 2011· Updated Jun 16, 2026

CVE-2011-4503

CVE-2011-4503

Description

The UPnP IGD implementation in Broadcom Linux on the Sitecom WL-111 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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

4
  • Sitecom/Wl 1112 versions
    cpe:2.3:h:sitecom:wl-111:-:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:h:sitecom:wl-111:-:*:*:*:*:*:*:*
    • (no CPE)
  • cpe:2.3:o:broadcom:broadcom_linux:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:broadcom:broadcom_linux:*:*:*:*:*:*:*:*
    • (no CPE)

Patches

Vulnerability mechanics

References

2

News mentions

0

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