{"api_version":"1","generated_at":"2026-07-23T13:14:28+00:00","cve":"CVE-2019-6596","urls":{"html":"https://cve.report/CVE-2019-6596","api":"https://cve.report/api/cve/CVE-2019-6596.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2019-6596","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-6596"},"summary":{"title":"CVE-2019-6596","description":"In BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.1.1, 12.1.0-12.1.3.6, 11.6.1-11.6.3.2, or 11.5.1-11.5.8, when processing fragmented ClientHello messages in a DTLS session TMM may corrupt memory eventually leading to a crash. Only systems offering DTLS connections via APM are impacted.","state":"PUBLIC","assigner":"f5sirt@f5.com","published_at":"2019-03-13 22:29:00","updated_at":"2020-08-24 17:37:00"},"problem_types":["NVD-CWE-noinfo"],"metrics":[],"references":[{"url":"http://www.securityfocus.com/bid/107403","name":"107403","refsource":"BID","tags":["Third Party Advisory"],"title":"F5 BIG-IP APM CVE-2019-6596 Denial of Service Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://support.f5.com/csp/article/K97241515","name":"https://support.f5.com/csp/article/K97241515","refsource":"CONFIRM","tags":["Vendor Advisory"],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-6596","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-6596","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2019","cve_id":"6596","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_access_policy_manager","cpe6":"14.0.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6596","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_access_policy_manager","cpe6":"14.0.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6596","vulnerable":"1","versionEndIncluding":"11.5.8","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_access_policy_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6596","vulnerable":"1","versionEndIncluding":"11.6.3","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_access_policy_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6596","vulnerable":"1","versionEndIncluding":"12.1.3","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_access_policy_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6596","vulnerable":"1","versionEndIncluding":"13.1.1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_access_policy_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"f5sirt@f5.com","DATE_PUBLIC":"2019-03-11T00:00:00","ID":"CVE-2019-6596","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"BIG-IP (APM)","version":{"version_data":[{"version_value":"14.0.0-14.0.0.2, 13.0.0-13.1.1.1, 12.1.0-12.1.3.6, 11.6.1-11.6.3.2, 11.5.1-11.5.8"}]}}]},"vendor_name":"F5 Networks, Inc."}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"In BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.1.1, 12.1.0-12.1.3.6, 11.6.1-11.6.3.2, or 11.5.1-11.5.8, when processing fragmented ClientHello messages in a DTLS session TMM may corrupt memory eventually leading to a crash. Only systems offering DTLS connections via APM are impacted."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"DoS"}]}]},"references":{"reference_data":[{"name":"https://support.f5.com/csp/article/K97241515","refsource":"CONFIRM","url":"https://support.f5.com/csp/article/K97241515"},{"name":"107403","refsource":"BID","url":"http://www.securityfocus.com/bid/107403"}]}},"nvd":{"publishedDate":"2019-03-13 22:29:00","lastModifiedDate":"2020-08-24 17:37:00","problem_types":["NVD-CWE-noinfo"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":5},"severity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"12.1.0","versionEndIncluding":"12.1.3","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"11.6.1","versionEndIncluding":"11.6.3","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_access_policy_manager:14.0.0:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"13.0.0","versionEndIncluding":"13.1.1","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"11.5.1","versionEndIncluding":"11.5.8","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2019","CveId":"6596","Ordinal":"144327","Title":"CVE-2019-6596","CVE":"CVE-2019-6596","Year":"2019"},"notes":[{"CveYear":"2019","CveId":"6596","Ordinal":"1","NoteData":"In BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.1.1, 12.1.0-12.1.3.6, 11.6.1-11.6.3.2, or 11.5.1-11.5.8, when processing fragmented ClientHello messages in a DTLS session TMM may corrupt memory eventually leading to a crash. Only systems offering DTLS connections via APM are impacted.","Type":"Description","Title":null},{"CveYear":"2019","CveId":"6596","Ordinal":"2","NoteData":"2019-03-13","Type":"Other","Title":"Published"},{"CveYear":"2019","CveId":"6596","Ordinal":"3","NoteData":"2019-03-15","Type":"Other","Title":"Modified"}]}}}