CVE-2018-0159

CVE	CVE-2018-0159
State	PUBLIC
Assigner	[email protected]
Source Priority	CVE Program / NVD first with legacy fallback
Published	2018-03-28 22:29:00 UTC
Updated	2019-10-09 23:31:00 UTC
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.

EPSS: 0.069680000 probability, percentile 0.914050000 (date 2026-04-02)

CISA KEV: Listed on 2022-03-03; due 2022-03-17; ransomware use Unknown

Problem Types: CWE-20

Vendor	Cisco
Product	IOS Software and Cisco IOS XE Software
Name	Cisco IOS and XE Software Internet Key Exchange Version 1 Denial-of-Service Vulnerability
Required Action	Apply updates per vendor instructions.
Notes	https://nvd.nist.gov/vuln/detail/CVE-2018-0159

Type	Vendor	Product	Version	Update	Edition	Language
Hardware	Cisco	Asr 901-12c-f-d	-	All	All	All
Hardware	Cisco	Asr 901-12c-f-d	-	All	All	All
Hardware	Cisco	Asr 901-12c-ft-d	-	All	All	All
Hardware	Cisco	Asr 901-12c-ft-d	-	All	All	All
Hardware	Cisco	Asr 901-4c-f-d	-	All	All	All
Hardware	Cisco	Asr 901-4c-f-d	-	All	All	All
Hardware	Cisco	Asr 901-4c-ft-d	-	All	All	All
Hardware	Cisco	Asr 901-4c-ft-d	-	All	All	All
Hardware	Cisco	Asr 901-6cz-f-a	-	All	All	All
Hardware	Cisco	Asr 901-6cz-f-a	-	All	All	All
Hardware	Cisco	Asr 901-6cz-f-d	-	All	All	All
Hardware	Cisco	Asr 901-6cz-f-d	-	All	All	All
Hardware	Cisco	Asr 901-6cz-ft-a	-	All	All	All
Hardware	Cisco	Asr 901-6cz-ft-a	-	All	All	All
Hardware	Cisco	Asr 901-6cz-ft-d	-	All	All	All
Hardware	Cisco	Asr 901-6cz-ft-d	-	All	All	All
Operating System	Cisco	Ios	15.3(3)s	All	All	All
Operating System	Cisco	Ios	15.3\(3\)s	All	All	All
Operating System	Cisco	Ios	15.3\(3\)s	All	All	All
Operating System	Cisco	Ios Xe	15.3(3)s	All	All	All
Operating System	Cisco	Ios Xe	15.3\(3\)s	All	All	All
Operating System	Cisco	Ios Xe	15.3\(3\)s	All	All	All
Hardware	Cisco	Me 3600x-24cx-m	-	All	All	All
Hardware	Cisco	Me 3600x-24cx-m	-	All	All	All
Hardware	Cisco	Me 3600x-24fs-m	-	All	All	All
Hardware	Cisco	Me 3600x-24fs-m	-	All	All	All
Hardware	Cisco	Me 3600x-24ts-m	-	All	All	All
Hardware	Cisco	Me 3600x-24ts-m	-	All	All	All
Hardware	Cisco	Me 3800x-24fs-m	-	All	All	All
Hardware	Cisco	Me 3800x-24fs-m	-	All	All	All

Reference	Source	Link	Tags
Malformed Request	BID	www.securityfocus.com	Third Party Advisory, VDB Entry
Cisco IOS and IOS XE Software Internet Key Exchange Version 1 Denial of Service Vulnerability	CONFIRM	tools.cisco.com	Vendor Advisory
Cisco IOS/IOS XE IKE Processing Flaws Let Remote Users Cause the Target System to Reload - SecurityTracker	SECTRACK	www.securitytracker.com	Third Party Advisory, VDB Entry
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis
CISA Known Exploited Vulnerabilities catalog	CISA	www.cisa.gov	kev

No vendor comments have been submitted for this CVE.

There are currently no legacy QID mappings associated with this CVE.