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7.5

SpeedTouch 5x6 routers let remote users open ports

CVE-2011-4505 · published 14 years ago
Summary

Older firmware on SpeedTouch 5x6 routers (versions before 6.2.29) can be tricked into creating network port openings from outside the network. This could let attackers reach devices or services that should be protected. Update the router firmware to version 6.2.29 or later, or disable the UPnP feature until the update is applied.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
alcatel speedtouch_5x6_router_firmware <= 6.2
cpe:2.3:a:alcatel:speedtouch_5x6_router_firmware:*:*:*:*:*:*:*:*
alcatel speedtouch_5x6_router All versions
cpe:2.3:h:alcatel:speedtouch_5x6_router:*:*:*:*:*:*:*:*
Original advisory text
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 requ...
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.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
7.5 High
Exploitation
1% chance of attack within 30 days
Type
CWE-16Configuration
Timeline
Published22 Nov 2011
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2011-4505 · NVD
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