Directory traversal vulnerability in SolarWinds TFTP Server 8.1 and earlier allows remote attackers to download arbitrary files via a crafted GET request including "....//" sequences, which are collapsed into "../" sequences by filtering.
https://exchange.xforce.ibmcloud.com/vulnerabilities/25969
http://www.vupen.com/english/advisories/2006/1561
http://www.securityfocus.com/bid/17648
http://www.securityfocus.com/archive/1/431729/100/0/threaded
http://securityreason.com/securityalert/778
http://secunia.com/advisories/19848
http://archives.neohapsis.com/archives/vulnwatch/2006-q2/0009.html