CVE-2012-4621: Cisco IOS

High severity, CVSS 7.8. EPSS: 1.6% chance of exploitation in the next 30 days.

The Device Sensor feature in Cisco IOS 15.0 through 15.2 allows remote attackers to cause a denial of service (device reload) via a DHCP packet, aka Bug ID CSCty96049.

Affected products

• Cisco IOS: version 15.0 only; version 15.0(1)se only; version 15.1 only; version 15.2 only

Published 2012-09-27. Last modified 2026-06-16.