CVE-2004-0171

CVE-2004-0171 describes a denial-of-service vulnerability affecting FreeBSD 5.1 and earlier, and Mac OS X before 10.3.4. Remote attackers can exploit this by sending a large volume of out-of-sequence TCP packets, leading to memory buffer exhaustion and system crashes, preventing new connections. Rated with a CVSS score of 5.0, this vulnerability is easily exploitable over the network with low complexity and no authentication required, resulting in a complete loss of availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this decade-old vulnerability.