CVE-2002-2338: Mozilla

Medium severity, CVSS 5.0. EPSS: 3.9% chance of exploitation in the next 30 days.

The POP3 mail client in Mozilla 1.0 and earlier, and Netscape Communicator 4.7 and earlier, allows remote attackers to cause a denial of service (no new mail) via a mail message containing a dot (.) at a newline, which is interpreted as the end of the message.

Affected products

• Mozilla Mozilla: version 0.9.2 only; version 0.9.2.1 only; version 0.9.3 only; version 0.9.4 only; version 0.9.4.1 only; version 0.9.5 only; …
• Netscape Communicator: version 4.0 only; version 4.4 only; version 4.5 only; version 4.06 only; version 4.6 only; version 4.07 only; …
• Netscape Navigator: version 6.0 only; version 6.01 only; version 6.1 only; version 6.2 only; version 6.2.1 only; version 6.2.2 only

Published 2002-12-31. Last modified 2026-06-16.