The HTTP server in the Thomson TWC305, TWC315, and TCW690 cable modem ST42.03.0a allows remote attackers to cause a denial of service (unstable service) via a long GET request, possibly caused by a buffer overflow.
https://exchange.xforce.ibmcloud.com/vulnerabilities/13815
http://marc.info/?l=full-disclosure&m=110880725322192&w=2
http://marc.info/?l=bugtraq&m=110888093214678&w=2
http://lists.grok.org.uk/pipermail/full-disclosure/2003-November/014068.html