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Vulnerability record · CVE-2002-1911 · published 31 December 2002

CVE-2002-1911: Zonelabs zonealarm vulnerability

Zonelabs · Zonealarm

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.

5.0 CVSS 2.0 Medium EPSS 3.1% · top 12.6%
5.0CVSS 2.0 base score
3.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References, 2 tagged exploit
16 Jun 2026Last modified by NVD

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.

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

Affected products

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

References

LinkTags
http://archives.neohapsis.com/archives/bugtraq/2002-10/0238.html
http://www.iss.net/security_center/static/10379.php
http://www.securityfocus.com/archive/1/295434
http://www.securityfocus.com/bid/5975 Exploit
http://archives.neohapsis.com/archives/bugtraq/2002-10/0238.html
http://www.iss.net/security_center/static/10379.php
http://www.securityfocus.com/archive/1/295434
http://www.securityfocus.com/bid/5975 Exploit

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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%7.5CVE-2000-0339Zonelabs zonealarm vulnerabilityZoneAlarm 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.EPSS 7.3%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%

Source: NIST National Vulnerability Database (record CVE-2002-1911), CISA KEV, FIRST EPSS (scores of 2026-10-02). This page is refreshed as NVD updates the record.