CVE-2009-0633: Cisco IOS

High severity, CVSS 7.1. EPSS: 2.5% chance of exploitation in the next 30 days.

Multiple unspecified vulnerabilities in the (1) Mobile IP NAT Traversal feature and (2) Mobile IPv6 subsystem in Cisco IOS 12.3 through 12.4 allow remote attackers to cause a denial of service (input queue wedge and interface outage) via MIPv6 packets, aka Bug ID CSCsm97220.

Affected products

• Cisco Cisco IOS: version 12.3 only; version 12.4 only

Published 2009-03-27. Last modified 2026-06-16.