CVE-2018-0159Cisco IOS and XE Software Internet Key Exchange Version 1 Denial-of-Service Vulnerability
A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of specific IKEv1 packets. An attacker could exploit this vulnerability by sending crafted IKEv1 packets to an affected device during an IKE negotiation. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuj73916.
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 7.5 | HIGH | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 7.8 | HIGH | 2.0NVD | AV:N/AC:L/Au:N/C:N/I:N/A:C |
CISA required action
⚡ Known exploited · remediation due Mar 17, 2022
Apply updates per vendor instructions.
Details
- CVE ID
- CVE-2018-0159
- Status
- Analyzed
- Assigner (CNA)
- cisco
- Published
- Mar 28, 2018
- Last modified
- 2026-06-17 01:29 UTC
- Weaknesses
Affected Products
As published by the CNA in the CVE record.
Cisco IOS and IOS XE1 version range
- Cisco IOS and IOS XE
References
- securityfocus.com http://www.securityfocus.com/bid/103562
- securitytracker.com http://www.securitytracker.com/id/1040595
- tools.cisco.com https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos
- cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0159