CVE-2004-1936: Zonelabs Zonealarm

High severity, CVSS 7.5. EPSS: 1.6% chance of exploitation in the next 30 days.

ZoneAlarm Pro 4.5.538.001 and possibly other versions allows remote attackers to bypass e-mail protection via attachments whose names contain certain non-English characters.

Affected products

• Zonelabs Zonealarm: version 2.4 only; version 2.6 only; version 3.0 only; version 3.1 only; version 4.0 only; version 4.5 only; …

Published 2004-04-14. Last modified 2026-06-16.