Unspecified vulnerability in the HTTP compression functionality in Cisco CSS 11500 Series Content Services switches allows remote attackers to cause a denial of service (device reload) via (1) "valid, but obsolete" or (2) "specially crafted" HTTP requests.
https://exchange.xforce.ibmcloud.com/vulnerabilities/25642
http://www.vupen.com/english/advisories/2006/1257
http://www.securityfocus.com/bid/17383
http://www.cisco.com/warp/public/707/cisco-sa-20060405-css.shtml