CVE-2001-1064: Cisco Cbos

Medium severity, CVSS 5.0. EPSS: 5.4% chance of exploitation in the next 30 days.

Cisco 600 series routers running CBOS 2.0.1 through 2.4.2ap allows remote attackers to cause a denial of service via multiple connections to the router on the (1) HTTP or (2) telnet service, which causes the router to become unresponsive and stop forwarding packets.

Affected products

• Cisco Cbos: up to and including 2.4.2ap; version 2.0.1 only; version 2.1.0 only; version 2.1.0a only; version 2.2.0 only; version 2.2.1 only; …

Published 2001-08-31. Last modified 2026-06-16.