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Vulnerability record · CVE-2000-0339 · published 24 April 2000

CVE-2000-0339: Zonelabs zonealarm vulnerability

Zonelabs · Zonealarm

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.

7.5 CVSS 2.0 High EPSS 7.3% · top 5.9%
7.5CVSS 2.0 base score
7.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

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.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.osvdb.org/1294
http://www.securityfocus.com/bid/1137
http://www.securityfocus.com/templates/archive.pike?list=1&msg=20000421044123.2353.qmail%40securityfocus.com
http://www.osvdb.org/1294
http://www.securityfocus.com/bid/1137
http://www.securityfocus.com/templates/archive.pike?list=1&msg=20000421044123.2353.qmail%40securityfocus.com

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2005-1693Broadcom etrust antivirus vulnerabilityInteger overflow in Computer Associates Vet Antivirus library, as used by CA InoculateIT 6.0, eTrust Antivirus r6.0 through 7.1, eTrust Antivirus for…EPSS 6.9%10.0CVE-2004-0309Zonelabs integrity vulnerabilityStack-based buffer overflow in the SMTP service support in vsmon.exe in Zone Labs ZoneAlarm before 4.5.538.001, ZoneLabs Integrity client 4.0 before …EPSS 8.8%10.0CVE-2003-1309Zonelabs zonealarm vulnerabilityThe DeviceIoControl function in the TrueVector Device Driver (VSDATANT) in ZoneAlarm before 3.7.211, Pro before 4.0.146.029, and Plus before 4.0.146.…EPSS 2.3%7.5CVE-2005-3560Zonelabs zonealarm vulnerabilityZone Labs (1) ZoneAlarm Pro 6.0, (2) ZoneAlarm Internet Security Suite 6.0, (3) ZoneAlarm Anti-Virus 6.0, (4) ZoneAlarm Anti-Spyware 6.0 through 6.1,…EPSS 16%7.5CVE-2004-1936Zonelabs zonealarm vulnerabilityZoneAlarm Pro 4.5.538.001 and possibly other versions allows remote attackers to bypass e-mail protection via attachments whose names contain certain…EPSS 1.6%7.5CVE-2002-1997Zonelabs zonealarm vulnerabilityZoneAlarm Pro 3.0 MailSafe allows remote attackers to bypass filtering and possibly execute arbitrary code via email attachments containing a trailin…EPSS 2.8%6.9CVE-2007-5044Zonelabs zonealarm permissions and access controls vulnerabilityZoneAlarm Pro 7.0.362.000 does not properly validate certain parameters to System Service Descriptor Table (SSDT) function handlers, which allows loc…EPSS 0.29%6.9CVE-2007-2083Zonelabs zonealarm vulnerabilityvsdatant.sys in Check Point Zone Labs ZoneAlarm Pro before 7.0.302.000 does not validate certain arguments before being passed to hooked SSDT functio…EPSS 0.77%

Source: NIST National Vulnerability Database (record CVE-2000-0339), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.