Vulnerability Bulletins

Cisco IOS and IOS XE Software Internet Key Exchange Version 1 Denial of Service Vulnerability

System information

Affected software Cisco


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

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Standar resources

Property Value
CVE CVE-2018-0159.

Version history

Version Comments Date
1.0 Advisory issued 2023-01-28
Ministerio de Defensa