
CVE-2004-1111
https://notcve.org/view.php?id=CVE-2004-1111
01 Dec 2004 — Cisco IOS 2.2(18)EW, 12.2(18)EWA, 12.2(14)SZ, 12.2(18)S, 12.2(18)SE, 12.2(18)SV, 12.2(18)SW, and other versions without the "no service dhcp" command, keep undeliverable DHCP packets in the queue instead of dropping them, which allows remote attackers to cause a denial of service (dropped traffic) via multiple undeliverable DHCP packets that exceed the input queue size. • http://www.ciac.org/ciac/bulletins/p-034.shtml •

CVE-2000-0345
https://notcve.org/view.php?id=CVE-2000-0345
03 May 2000 — The on-line help system options in Cisco routers allows non-privileged users without "enabled" access to obtain sensitive information via the show command. • http://www.securityfocus.com/bid/1161 •

CVE-2000-0268
https://notcve.org/view.php?id=CVE-2000-0268
20 Apr 2000 — Cisco IOS 11.x and 12.x allows remote attackers to cause a denial of service by sending the ENVIRON option to the Telnet daemon before it is ready to accept it, which causes the system to reboot. • http://www.cisco.com/warp/public/707/iostelnetopt-pub.shtml •