{"id":"CVE-2000-0339","url":"https://www.cyber-defence.io/tools/cve/CVE-2000-0339","generatedAt":"2026-10-27T20:39:31.575Z","title":"ZoneAlarm 2.1.10 and earlier does not filter UDP packets with a source port of 67, which allows remote attackers to bypass the firewall rules.","description":"ZoneAlarm 2.1.10 and earlier does not filter UDP packets with a source port of 67, which allows remote attackers to bypass the firewall rules.","published":"2000-04-24T04:00:00.000Z","lastModified":"2026-06-16T21:51:31.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":7.5,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P"},"cwe":[],"affected":["zonelabs/zonealarm"],"epss":{"score":0.07258,"percentile":0.94302,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2000-04-24","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":19871,"kind":"exploit","title":"Zone Labs ZoneAlarm 2.1 Personal Firewall - Port 67","url":"https://www.exploit-db.com/exploits/19871","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/windows/remote/19871.txt","file":"exploits/windows/remote/19871.txt","published":"2000-04-24","added":"2000-04-24","updated":"2012-07-16","author":"Wally Whacker","type":"remote","platform":"windows","port":null,"verified":true,"codes":["CVE-2000-0339","OSVDB-1294"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://www.securityfocus.com/bid/1137/info"}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 7.3%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"http://www.osvdb.org/1294","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/1137","source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/templates/archive.pike?list=1&msg=20000421044123.2353.qmail%40securityfocus.com","source":"cve@mitre.org"},{"url":"http://www.osvdb.org/1294","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/1137","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/templates/archive.pike?list=1&msg=20000421044123.2353.qmail%40securityfocus.com","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2000-0339","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}