CVE-2002-0402: Ethereal Group Ethereal

High severity, CVSS 7.5. EPSS: 4.9% chance of exploitation in the next 30 days.

Buffer overflow in X11 dissector in Ethereal 0.9.3 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code while Ethereal is parsing keysyms.

Affected products

• Ethereal Group Ethereal: version 0.9.1 only; version 0.9.2 only; version 0.9.3 only; version 0.9_.0 only

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