CVE-2011-4505: n/a vulnerability

CVE-2011-4505: The UPnP IGD implementation on SpeedTouch 5x6 devices with firmware before 6.2.29 allows remote attackers t...

The UPnP IGD implementation on SpeedTouch 5x6 devices with firmware before 6.2.29 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.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 16, 2024, 20:32 UTC (UTC+00:00)

Security readout for executives and security teams

Certain SpeedTouch 5x6 routers could let an outside attacker create port-forwarding rules through UPnP. That may expose internal services to the internet without administrator intent. The source bundle names firmware before 6.2.29 and does not provide CVSS scoring. Exposure is most likely on legacy SpeedTouch 5x6 internet gateway devices with firmware older than 6.2.29, especially where UPnP IGD is reachable from the WAN side. Treat this as a legacy edge-device exposure issue. Prioritize if any SpeedTouch 5x6 routers remain in service, because unauthorized port mappings can quietly expose internal systems. Mitigation focus: Identify SpeedTouch 5x6 devices and confirm firmware versions.; Upgrade affected firmware to 6.2.29 or later where vendor guidance supports it.; Ensure UPnP IGD is not reachable from the WAN interface..

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.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Nov 22, 2011, 11:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1Source links

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CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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