CVE-2002-0813: Cisco IOS

High severity, CVSS 7.1. EPSS: 9.1% chance of exploitation in the next 30 days.

Heap-based buffer overflow in the TFTP server capability in Cisco IOS 11.1, 11.2, and 11.3 allows remote attackers to cause a denial of service (reset) or modify configuration via a long filename.

Affected products

• Cisco IOS: version 11.1 only; version 11.2 only; version 11.3 only

Published 2002-08-12. Last modified 2026-06-16.