CVE-2002-1911

CVE-2002-1911 describes a denial-of-service vulnerability affecting ZoneAlarm Pro versions 3.0 and 3.1. When configured to block all traffic, these products are susceptible to a SYN flood attack, leading to high CPU and memory consumption. This vulnerability has a CVSS score of 5.0, indicating a medium severity, and can be exploited remotely with low attack complexity, resulting in partial availability impact. While the vendor could not reproduce the issue, an exploit is publicly available on ExploitDB, though there is no evidence of active exploitation, Metasploit modules, or significant community discussion.