CVE-2018-0158

CVE-2018-0158

Vendor N/A
Product Cisco IOS and IOS XE
Weakness CWE-20 · Input validation
KEV Status Known Exploited
Published March 28, 2018
Last update January 12, 2026

CVSS base score

What the vulnerability does

01Description

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain IKEv2 packets. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device to be processed. A successful exploit could cause an affected device to continuously consume memory and eventually reload, resulting in a DoS condition. Cisco Bug IDs: CSCvf22394.

CISA mandated remediation

02CISA Required Action

Apply updates per vendor instructions.

Key dates

03Disclosure timeline

March 28, 2018 CVE published
January 12, 2026 Record updated