CVE-2004-1111

CVE-2004-1111 describes a denial-of-service vulnerability in various Cisco IOS versions and router platforms. Specifically, affected systems fail to drop undeliverable DHCP packets, instead queuing them until the input queue is exhausted. This allows remote attackers to cause a denial of service by flooding the device with multiple undeliverable DHCP packets, leading to dropped legitimate traffic. The vulnerability has a CVSS score of 5.0 (medium severity) with an attack vector of network, low attack complexity, and a partial impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.