Is CVE-2017-12237 actively exploited?

Yes. CVE-2017-12237 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2017-12237 be exploited remotely?

The attack vector of CVE-2017-12237 has not been classified yet.

What is the CVSS score of CVE-2017-12237?

CVE-2017-12237 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2017-12237

HIGHCISA KEVIN THE WILD

CVE-2017-12237

Published: March 3, 2022

EPSS:5.32%probability of exploitation in 30 daysPercentile:89.8th

Official 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.

NVD Source

CISA KEV Advisory

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

Added to KEV: 2022-03-03Federal patch deadline: 2022-03-24

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

This Cisco IOS and IOS XE vulnerability in the IKEv2 module can be exploited by an unauthenticated, remote attacker to cause a denial of service through high CPU utilization or device reloads. Its presence in the KEV catalog confirms active exploitation, highlighting its urgency.

This vulnerability is actively being exploited in the wild. The remote nature of the attack vector means it can be exploited without authentication over a network.

Recommended Action

Administrators should apply the latest security updates for Cisco IOS and IOS XE to mitigate this denial of service vulnerability.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2017-12237 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2017-12237 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.