CVE-2018-0159

Published: Mar 28, 2018Updated: Jan 14, 2026 Sources: CVE List NVD BDUCWE-20

7.5HIGH

NVD MITRE

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:NIntegrity

None

A:HAvailability

High

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Weaknesses

CWE-20 NVD-CWE-noinfo

Affected Products

Cisco Systems Inc.

commercial·USaka cisco, cisco systems

Cisco IOSOn-premFirmware

Networking Infrastructure / router-switch

Cisco IOS XEOn-premFirmware

Networking Infrastructure / router-switch

and 3 more affected products View all →

Exploitability

CISA Known Exploited Vulnerability

Added to KEV:Mar 3, 2022

Remediation due:Mar 17, 2022

Required action: Apply updates per vendor instructions.

Official Patch Available

Is your org exposed to CVE-2018-0159?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Initial Access

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References

http://www.securityfocus.com/bid/103562

securityfocus.com

http://www.securitytracker.com/id/1040595

securitytracker.com

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos

tools.cisco.com

and 4 more references View all →

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