CVE-1999-1569

CVE-1999-1569 describes a denial-of-service vulnerability affecting Quake 1 and NetQuake servers, where remote attackers can exhaust server resources or force disconnections by flooding them with spoofed UDP connection packets, exceeding the player limit. This medium-severity vulnerability (CVSS 5.0) is easily exploitable over the network with low attack complexity, leading to partial availability impact. While not listed on CISA's KEV catalog, an ExploitDB entry exists, and the vulnerability has garnered significant community discussion, though it lacks Metasploit or Nuclei modules and has no reported media coverage.