CVE-2012-3079: Cisco IOS

High severity, CVSS 7.8. EPSS: 1.9% chance of exploitation in the next 30 days.

Cisco IOS 12.2 allows remote attackers to cause a denial of service (CPU consumption) by establishing many IPv6 neighbors, aka Bug ID CSCtn78957.

Affected products

• Cisco IOS: version 12.2 only

Published 2012-09-16. Last modified 2026-06-16.