TI-2011-03875 Aliases CVE-2011-4503 GHSA-ffcg-78g8-hcrr

The UPnP IGD implementation in Broadcom Linux on the Sitecom WL-111 allows remote…

LOW 37CWE-16Published 2011-11-22 · Updated 2024-09-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: Partial · Partial · Partial
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.02094 81st percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:broadcom:broadcom_linux::::::::	all versions	Vulnerable	Broadcom
cpe:2.3:h:sitecom:wl-111:-:::::::*	not specified by NVD	Vulnerable	Sitecom

cpe:2.3:o:broadcom:broadcom_linux:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Broadcom
cpe:2.3:h:sitecom:wl-111:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Sitecom

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2011-4503
2026-10-03 Alias added: GHSA-ffcg-78g8-hcrr

References

Advisory 1

VU#357851

Other 1

http://www.upnp-hacks.org/suspect.html

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences