CVE-2001-0566: Cisco Catalyst 2900

Medium severity, CVSS 5.0. EPSS: 6.4% chance of exploitation in the next 30 days.

Cisco Catalyst 2900XL switch allows a remote attacker to create a denial of service via an empty UDP packet sent to port 161 (SNMP) when SNMP is disabled.

Affected products

• Cisco Catalyst 2900: version xl only

Published 2001-08-14. Last modified 2026-06-16.