Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not support the "fragment" keyword in an outgoing ACL, which could allow fragmented packets in violation of the intended access.
https://exchange.xforce.ibmcloud.com/vulnerabilities/7552
https://euvd.enisa.europa.eu/vulnerability/EUVD-2001-0848
http://www.securityfocus.com/bid/3540