{"id":"CVE-2002-1911","aliases":["EUVD-2002-1890","GHSA-4wcf-6fv3-7rr5"],"status":"published","title":"ZoneAlarm Pro 3.0 and 3.1, when configured to block all traffic, allows remote attackers to cause...","description":"ZoneAlarm Pro 3.0 and 3.1, when configured to block all traffic, allows remote attackers to cause a denial of service (CPU and memory consumption) via a large number of SYN packets (SYN flood).  NOTE: the vendor was not able to reproduce the issue.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.03134,"percentile":0.87961,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"published":"2002-12-31T05:00:00Z","modified":"2026-06-16T22:00:17Z","exploits":[{"source":"exploitdb","id":"EDB-21943","title":"Zone Labs ZoneAlarm 3.0/3.1 - Syn Flood Denial of Service","type":"dos","platform":"windows","date":"2002-10-16","verified":true,"url":"https://www.exploit-db.com/exploits/21943"}],"products":[{"vendor":"zonelabs","product":"zonealarm"}],"references":[{"url":"http://www.securityfocus.com/bid/5975","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2002-10/0238.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.securityfocus.com/archive/1/295434","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://www.iss.net/security_center/static/10379.php","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2002-1911"},{"url":"https://github.com/advisories/GHSA-4wcf-6fv3-7rr5"}],"sources":{"cve":[{"id":"CVE-2002-1911","description":"ZoneAlarm Pro 3.0 and 3.1, when configured to block all traffic, allows remote attackers to cause a denial of service (CPU and memory consumption) via a large number of SYN packets (SYN flood).  NOTE: the vendor was not able to reproduce the issue.","status":"published","published":"2005-06-28T04:00:00Z","modified":"2024-09-17T02:48:09.03Z","updated_at":"2026-11-02T14:33:54.641433Z"}],"euvd":[{"id":"EUVD-2002-1890","description":"ZoneAlarm Pro 3.0 and 3.1, when configured to block all traffic, allows remote attackers to cause a denial of service (CPU and memory consumption) via a large number of SYN packets (SYN flood).  NOTE: the vendor was not able to reproduce the issue.","status":"published","published":"2005-06-28T04:00:00Z","modified":"2024-09-17T02:48:09Z","updated_at":"2026-11-03T00:28:36.981601Z"}],"ghsa":[{"id":"GHSA-4wcf-6fv3-7rr5","title":"ZoneAlarm Pro 3.0 and 3.1, when configured to block all traffic, allows remote attackers to cause...","description":"ZoneAlarm Pro 3.0 and 3.1, when configured to block all traffic, allows remote attackers to cause a denial of service (CPU and memory consumption) via a large number of SYN packets (SYN flood).  NOTE: the vendor was not able to reproduce the issue.","status":"published","published":"2022-04-30T18:22:08Z","modified":"2023-01-30T05:06:22Z","updated_at":"2026-11-02T14:47:28.633261Z"}],"nvd":[{"id":"CVE-2002-1911","description":"ZoneAlarm Pro 3.0 and 3.1, when configured to block all traffic, allows remote attackers to cause a denial of service (CPU and memory consumption) via a large number of SYN packets (SYN flood).  NOTE: the vendor was not able to reproduce the issue.","status":"published","published":"2002-12-31T05:00:00Z","modified":"2026-06-16T22:00:17.377Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:00:43.239725Z"}]}}