{"api_version":"1","generated_at":"2026-07-23T10:18:23+00:00","cve":"CVE-2015-6429","urls":{"html":"https://cve.report/CVE-2015-6429","api":"https://cve.report/api/cve/CVE-2015-6429.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2015-6429","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2015-6429"},"summary":{"title":"CVE-2015-6429","description":"The 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.","state":"PUBLISHED","assigner":"cisco","published_at":"2015-12-19 14:59:00","updated_at":"2026-05-06 22:30:45"},"problem_types":["CWE-19","n/a"],"metrics":[{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"5","severity":"","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"}}],"references":[{"url":"http://www.securitytracker.com/id/1034505","name":"http://www.securitytracker.com/id/1034505","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Cisco IOS and IOS XE Bug in IKE State Machine Lets Remote Users Deny Service - SecurityTracker","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151218-ios","name":"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151218-ios","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"title":"Cisco IOS and IOS XE Software IKEv1 State Machine Denial of Service Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2015-6429","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-6429","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios","cpe6":"15.4\\(3\\)s","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios","cpe6":"15.5\\(1\\)s","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios","cpe6":"15.5\\(1\\)t","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios","cpe6":"15.5\\(2\\)s","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios","cpe6":"15.5\\(2\\)t","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios","cpe6":"15.5\\(3\\)m","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios","cpe6":"15.5\\(3\\)m1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios","cpe6":"15.5\\(3\\)s","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios","cpe6":"15.5\\(3\\)s1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios","cpe6":"15.6\\(0.17\\)t","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios","cpe6":"15.6\\(1\\)t0a","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios_xe","cpe6":"3.15s.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios_xe","cpe6":"3.15s.1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios_xe","cpe6":"3.15s.2","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios_xe","cpe6":"3.16s.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios_xe","cpe6":"3.16s.1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios_xe","cpe6":"3.17s.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2015","cve_id":"6429","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"cisco","cpe5":"ios_xe","cpe6":"3.17s.1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-06T07:22:21.615Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"name":"20151218 Cisco IOS and IOS XE Software IKEv1 State Machine Denial of Service Vulnerability","tags":["vendor-advisory","x_refsource_CISCO","x_transferred"],"url":"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151218-ios"},{"name":"1034505","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"],"url":"http://www.securitytracker.com/id/1034505"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2015-12-18T00:00:00.000Z","descriptions":[{"lang":"en","value":"The 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."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2016-12-05T14:57:01.000Z","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","shortName":"cisco"},"references":[{"name":"20151218 Cisco IOS and IOS XE Software IKEv1 State Machine Denial of Service Vulnerability","tags":["vendor-advisory","x_refsource_CISCO"],"url":"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151218-ios"},{"name":"1034505","tags":["vdb-entry","x_refsource_SECTRACK"],"url":"http://www.securitytracker.com/id/1034505"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"psirt@cisco.com","ID":"CVE-2015-6429","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"The 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."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"20151218 Cisco IOS and IOS XE Software IKEv1 State Machine Denial of Service Vulnerability","refsource":"CISCO","url":"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151218-ios"},{"name":"1034505","refsource":"SECTRACK","url":"http://www.securitytracker.com/id/1034505"}]}}}},"cveMetadata":{"assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","assignerShortName":"cisco","cveId":"CVE-2015-6429","datePublished":"2015-12-19T11:00:00.000Z","dateReserved":"2015-08-17T00:00:00.000Z","dateUpdated":"2024-08-06T07:22:21.615Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2015-12-19 14:59:00","lastModifiedDate":"2026-05-06 22:30:45","problem_types":["CWE-19","n/a"],"metrics":{"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","baseScore":5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:15.4\\(3\\)s:*:*:*:*:*:*:*","matchCriteriaId":"C63FF7C4-D9CE-4D6C-B36E-0C0DC06F453E"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:15.5\\(1\\)s:*:*:*:*:*:*:*","matchCriteriaId":"9613EE90-A90A-4817-A5A1-F78A9F3BA571"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:15.5\\(1\\)t:*:*:*:*:*:*:*","matchCriteriaId":"59F21FEC-A536-45CB-9AE5-61CE45EAD1B7"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:15.5\\(2\\)s:*:*:*:*:*:*:*","matchCriteriaId":"3A259566-AA04-4DE8-900D-865384E56C8E"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:15.5\\(2\\)t:*:*:*:*:*:*:*","matchCriteriaId":"7A4E00DF-60FD-48F2-A69A-D709A5657F6A"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:15.5\\(3\\)m:*:*:*:*:*:*:*","matchCriteriaId":"716EC9AA-0569-4FA7-A244-1A14FA15C5AD"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:15.5\\(3\\)m1:*:*:*:*:*:*:*","matchCriteriaId":"097D1950-6159-45A2-8653-D3F90044D0C8"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:15.5\\(3\\)s:*:*:*:*:*:*:*","matchCriteriaId":"1194A7BD-CB51-42CD-96E6-9ACF126DD8CA"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:15.5\\(3\\)s1:*:*:*:*:*:*:*","matchCriteriaId":"F40A87C1-5EDB-4B50-84CF-729F5037E870"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:15.6\\(0.17\\)t:*:*:*:*:*:*:*","matchCriteriaId":"96BDDBD0-684C-4E90-ACF9-F45D4B85835F"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios:15.6\\(1\\)t0a:*:*:*:*:*:*:*","matchCriteriaId":"679DCA8C-F64B-4716-BCC9-9C461A89CB29"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:3.15s.0:*:*:*:*:*:*:*","matchCriteriaId":"5D9E5471-04AF-47A5-ACC7-335516356BDD"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:3.15s.1:*:*:*:*:*:*:*","matchCriteriaId":"FB8A0099-DE49-4AB6-A408-EE5D62642D17"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:3.15s.2:*:*:*:*:*:*:*","matchCriteriaId":"CE69B061-8523-487E-B749-28D56458A621"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:3.16s.0:*:*:*:*:*:*:*","matchCriteriaId":"25257039-7860-4424-8C92-267FC444DA33"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:3.16s.1:*:*:*:*:*:*:*","matchCriteriaId":"A0D78F52-7B40-4A9B-AC8E-150AFCAA7AF1"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:3.17s.0:*:*:*:*:*:*:*","matchCriteriaId":"203E013A-85E3-4D5B-A863-86297134BA04"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xe:3.17s.1:*:*:*:*:*:*:*","matchCriteriaId":"1BB0A028-FA64-4899-AEC7-D6C5040E7C0E"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2015","CveId":"6429","Ordinal":"1","Title":"CVE-2015-6429","CVE":"CVE-2015-6429","Year":"2015"},"notes":[{"CveYear":"2015","CveId":"6429","Ordinal":"1","NoteData":"The 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.","Type":"Description","Title":"CVE-2015-6429"},{"CveYear":"2015","CveId":"6429","Ordinal":"2","NoteData":"2015-12-19","Type":"Other","Title":"Published"},{"CveYear":"2015","CveId":"6429","Ordinal":"3","NoteData":"2016-12-05","Type":"Other","Title":"Modified"}]}}}