Cisco IOS and IOS XE Software Internet Key Exchange Denial-of-Service Vulnerability

Technical Severity

CVSS v3.1 Metrics

HIGH

7.5 / 10

Minimal Risk Critical

Vector Specification

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation Likelihood

EPSS Prediction

5.32 %

Predictive Probability

Percentile Rank

90.0 th

Documented as more likely to be exploited than 90.0% of known CVEs.

Detection Date

Mar 03, 2022

Remediation Due

Mar 24, 2022

CISA Catalog Active

Threat Analysis

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.

Remediation Directive

Apply updates per vendor instructions.

External Intelligence

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2017-12237