CVE-2002-0593: Mozilla

High severity, CVSS 7.5. EPSS: 3.5% chance of exploitation in the next 30 days.

Buffer overflow in Netscape 6 and Mozilla 1.0 RC1 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long channel name in an IRC URI.

Affected products

• Mozilla Mozilla: version 0.9.9 only; version 1.0 only
• Netscape Communicator: version 6.1 only
• Netscape Navigator: version 6.0 only; version 6.01 only

Published 2002-06-18. Last modified 2026-06-16.