CVE-1999-0016: Cisco IOS

Medium severity, CVSS 5.0. EPSS: 95.7% chance of exploitation in the next 30 days.

Land IP denial of service.

Affected products

• Cisco IOS: version 7000 only
• GNU Inet: version 5.01 only
• HP HP-Ux: version 9.00 only; version 9.01 only; version 9.03 only; version 9.04 only; version 9.05 only; version 9.07 only; …
• Microsoft Windows 95: any version
• Microsoft Windows Nt: version 4.0 only
• Microsoft WinSock: version 2.0 only
• Netbsd Netbsd: version 1.0 only; version 1.1 only
• Sun Sunos: version 4.1.3u1 only; version 4.1.4 only

Published 1997-12-01. Last modified 2026-06-16.