CVE-2000-0984: Cisco IOS

Medium severity, CVSS 5.0. EPSS: 4.3% chance of exploitation in the next 30 days.

The HTTP server in Cisco IOS 12.0 through 12.1 allows local users to cause a denial of service (crash and reload) via a URL containing a "?/" string.

Affected products

• Cisco IOS: version 12.0t only; version 12.0w5 only; version 12.0xa only; version 12.0xe only; version 12.0xh only; version 12.0xj only; …

Published 2000-12-19. Last modified 2026-09-23.