CVE-2002-0339: Cisco IOS

Medium severity, CVSS 5.0. EPSS: 1.8% chance of exploitation in the next 30 days.

Cisco IOS 11.1CC through 12.2 with Cisco Express Forwarding (CEF) enabled includes portions of previous packets in the padding of a MAC level packet when the MAC packet's length is less than the IP level packet length.

Affected products

• Cisco IOS: version 11.1cc only; version 12.0 only; version 12.0s only; version 12.0st only; version 12.0t only; version 12.1 only; …

Published 2002-06-25. Last modified 2026-06-16.