CVE-2017-12237 — Cisco IOS and IOS XE Software Internet Key Exchange Denial-of-Service Vulnerability

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS and Cisco IOS XE could allow an unauthenticated, remote attacker to cause high CPU utilization, traceback messages, or a reload of an affected device that leads to a denial of service.