CVE-2017-12237—Cisco IOS and IOS XE Software Internet Key Exchange Denial-of-Service Vulnerability
PUBLISHEDvulnerability record
2022-03-03 · last modified June 21, 2025
Metadata
Vulnerability Name
Cisco IOS and IOS XE Software Internet Key Exchange Denial-of-Service Vulnerability
Description
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.
Known To Be Used in Ransomware Campaigns?
Action
Apply updates per vendor instructions.