CVE-2018-0158
Cisco IOS and IOS XE
Published 28 Mar 2018 · updated 17 Jun 2026 · Analyzed
Exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on 3 Mar 2022, with a remediation deadline of 17 Mar 2022 for US federal agencies.
Required action: Apply updates per vendor instructions.
Description
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.
References
- www.securityfocus.com/bid/103566 · Broken Link, Third Party Advisory, VDB Entry
- www.securitytracker.com/id/1040595 · Broken Link, Third Party Advisory, VDB Entry
- ics-cert.us-cert.gov/advisories/ICSA-18-107-03 · Third Party Advisory, US Government Resource, VDB Entry
- ics-cert.us-cert.gov/advisories/ICSA-18-107-04 · Third Party Advisory, US Government Resource, VDB Entry
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike · Vendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0158 · US Government Resource