March 3, 2022 · Applied Cybernetics Group
CVE-2017-12237 — Cisco IOS and IOS XE Software
Cisco IOS and IOS XE Software Internet Key Exchange Denial-of-Service Vulnerability
- Added to KEV
2022-03-03- Federal due date
2022-03-24- Vendor
- Cisco
- Product
- IOS and IOS XE Software
- EPSS
- 92.9th percentile (score 0.093, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2017-12237
CISA short 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.
Required action
Apply updates per vendor instructions.