CVE-2015-6429

Summary

CVECVE-2015-6429
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2015-12-19 14:59:00 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe IKEv1 state machine in Cisco IOS 15.4 through 15.6 and IOS XE 3.15 through 3.17 allows remote attackers to cause a denial of service (IPsec connection termination) via a crafted IKEv1 packet to a tunnel endpoint, aka Bug ID CSCuw08236.

Risk And Classification

Primary CVSS: v2.0 5 from [email protected]

AV:N/AC:L/Au:N/C:N/I:N/A:P

Problem Types: CWE-19 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Cisco Ios 15.4\(3\)s All All All
Operating System Cisco Ios 15.5\(1\)s All All All
Operating System Cisco Ios 15.5\(1\)t All All All
Operating System Cisco Ios 15.5\(2\)s All All All
Operating System Cisco Ios 15.5\(2\)t All All All
Operating System Cisco Ios 15.5\(3\)m All All All
Operating System Cisco Ios 15.5\(3\)m1 All All All
Operating System Cisco Ios 15.5\(3\)s All All All
Operating System Cisco Ios 15.5\(3\)s1 All All All
Operating System Cisco Ios 15.6\(0.17\)t All All All
Operating System Cisco Ios 15.6\(1\)t0a All All All
Operating System Cisco Ios Xe 3.15s.0 All All All
Operating System Cisco Ios Xe 3.15s.1 All All All
Operating System Cisco Ios Xe 3.15s.2 All All All
Operating System Cisco Ios Xe 3.16s.0 All All All
Operating System Cisco Ios Xe 3.16s.1 All All All
Operating System Cisco Ios Xe 3.17s.0 All All All
Operating System Cisco Ios Xe 3.17s.1 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Cisco IOS and IOS XE Bug in IKE State Machine Lets Remote Users Deny Service - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
Cisco IOS and IOS XE Software IKEv1 State Machine Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 tools.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report