{"api_version":"1","generated_at":"2026-07-23T23:57:11+00:00","cve":"CVE-2016-7428","urls":{"html":"https://cve.report/CVE-2016-7428","api":"https://cve.report/api/cve/CVE-2016-7428.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2016-7428","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-7428"},"summary":{"title":"CVE-2016-7428","description":"ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (reject broadcast mode packets) via the poll interval in a broadcast packet.","state":"PUBLISHED","assigner":"mitre","published_at":"2017-01-13 16:59:00","updated_at":"2025-04-20 01:37:25"},"problem_types":["CWE-400","n/a"],"metrics":[{"version":"3.0","source":"nvd@nist.gov","type":"Primary","score":"4.3","severity":"MEDIUM","vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","data":{"version":"3.0","vectorString":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"}},{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"3.3","severity":"","vector":"AV:A/AC:L/Au:N/C:N/I:N/A:P","data":{"version":"2.0","vectorString":"AV:A/AC:L/Au:N/C:N/I:N/A:P","baseScore":3.3,"accessVector":"ADJACENT_NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"}}],"references":[{"url":"http://nwtime.org/ntp428p9_release/","name":"http://nwtime.org/ntp428p9_release/","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Release Notes","Vendor Advisory"],"title":"Network Time Foundation Publishes NTP 4.2.8p9 Security Release","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.kb.cert.org/vuls/id/633847","name":"https://www.kb.cert.org/vuls/id/633847","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","US Government Resource"],"title":"Vulnerability Note VU#633847 - NTP.org ntpd contains multiple denial of service vulnerabilities","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bto.bluecoat.com/security-advisory/sa139","name":"https://bto.bluecoat.com/security-advisory/sa139","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Broadcom Support Portal","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities","name":"http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us","name":"https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Document Display | HPE Support Center","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03899en_us","name":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03899en_us","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Document Display | HPE Support Center","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securitytracker.com/id/1037354","name":"http://www.securitytracker.com/id/1037354","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"ntp Multiple Bugs Let Remote Users Cause the Target Service to Crash - SecurityTracker","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://www.securityfocus.com/bid/94446","name":"http://www.securityfocus.com/bid/94446","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory","VDB Entry"],"title":"NTP CVE-2016-7428 Denial of Service Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://usn.ubuntu.com/3707-2/","name":"https://usn.ubuntu.com/3707-2/","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"USN-3707-2: NTP vulnerabilities | Ubuntu security notices","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03883en_us","name":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03883en_us","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Document Display | HPE Support Center","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc","name":"https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"text/plain","httpstatus":"200","archivestatus":"200"},{"url":"http://support.ntp.org/bin/view/Main/NtpBug3113","name":"http://support.ntp.org/bin/view/Main/NtpBug3113","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Mitigation","Vendor Advisory"],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-7428","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-7428","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":"2016","cve_id":"7428","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"ntp","cpe5":"ntp","cpe6":"4.2.8","cpe7":"p6","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"7428","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"ntp","cpe5":"ntp","cpe6":"4.2.8","cpe7":"p7","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2016","cve_id":"7428","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"ntp","cpe5":"ntp","cpe6":"4.2.8","cpe7":"p8","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-06T01:57:47.554Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us"},{"name":"USN-3707-2","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"],"url":"https://usn.ubuntu.com/3707-2/"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://support.ntp.org/bin/view/Main/NtpBug3113"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03883en_us"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"http://nwtime.org/ntp428p9_release/"},{"name":"94446","tags":["vdb-entry","x_refsource_BID","x_transferred"],"url":"http://www.securityfocus.com/bid/94446"},{"name":"VU#633847","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred"],"url":"https://www.kb.cert.org/vuls/id/633847"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03899en_us"},{"name":"1037354","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"],"url":"http://www.securitytracker.com/id/1037354"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://bto.bluecoat.com/security-advisory/sa139"},{"name":"FreeBSD-SA-16:39","tags":["vendor-advisory","x_refsource_FREEBSD","x_transferred"],"url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2016-11-21T00:00:00.000Z","descriptions":[{"lang":"en","value":"ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (reject broadcast mode packets) via the poll interval in a broadcast packet."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2019-01-24T10:57:02.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us"},{"name":"USN-3707-2","tags":["vendor-advisory","x_refsource_UBUNTU"],"url":"https://usn.ubuntu.com/3707-2/"},{"tags":["x_refsource_CONFIRM"],"url":"http://support.ntp.org/bin/view/Main/NtpBug3113"},{"tags":["x_refsource_CONFIRM"],"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03883en_us"},{"tags":["x_refsource_CONFIRM"],"url":"http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities"},{"tags":["x_refsource_CONFIRM"],"url":"http://nwtime.org/ntp428p9_release/"},{"name":"94446","tags":["vdb-entry","x_refsource_BID"],"url":"http://www.securityfocus.com/bid/94446"},{"name":"VU#633847","tags":["third-party-advisory","x_refsource_CERT-VN"],"url":"https://www.kb.cert.org/vuls/id/633847"},{"tags":["x_refsource_CONFIRM"],"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03899en_us"},{"name":"1037354","tags":["vdb-entry","x_refsource_SECTRACK"],"url":"http://www.securitytracker.com/id/1037354"},{"tags":["x_refsource_CONFIRM"],"url":"https://bto.bluecoat.com/security-advisory/sa139"},{"name":"FreeBSD-SA-16:39","tags":["vendor-advisory","x_refsource_FREEBSD"],"url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2016-7428","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":"ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (reject broadcast mode packets) via the poll interval in a broadcast packet."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us","refsource":"CONFIRM","url":"https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us"},{"name":"USN-3707-2","refsource":"UBUNTU","url":"https://usn.ubuntu.com/3707-2/"},{"name":"http://support.ntp.org/bin/view/Main/NtpBug3113","refsource":"CONFIRM","url":"http://support.ntp.org/bin/view/Main/NtpBug3113"},{"name":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03883en_us","refsource":"CONFIRM","url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03883en_us"},{"name":"http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities","refsource":"CONFIRM","url":"http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities"},{"name":"http://nwtime.org/ntp428p9_release/","refsource":"CONFIRM","url":"http://nwtime.org/ntp428p9_release/"},{"name":"94446","refsource":"BID","url":"http://www.securityfocus.com/bid/94446"},{"name":"VU#633847","refsource":"CERT-VN","url":"https://www.kb.cert.org/vuls/id/633847"},{"name":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03899en_us","refsource":"CONFIRM","url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03899en_us"},{"name":"1037354","refsource":"SECTRACK","url":"http://www.securitytracker.com/id/1037354"},{"name":"https://bto.bluecoat.com/security-advisory/sa139","refsource":"CONFIRM","url":"https://bto.bluecoat.com/security-advisory/sa139"},{"name":"FreeBSD-SA-16:39","refsource":"FREEBSD","url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc"}]}}}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2016-7428","datePublished":"2017-01-13T16:00:00.000Z","dateReserved":"2016-09-09T00:00:00.000Z","dateUpdated":"2024-08-06T01:57:47.554Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2017-01-13 16:59:00","lastModifiedDate":"2025-04-20 01:37:25","problem_types":["CWE-400","n/a"],"metrics":{"cvssMetricV30":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":2.8,"impactScore":1.4}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:A/AC:L/Au:N/C:N/I:N/A:P","baseScore":3.3,"accessVector":"ADJACENT_NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"LOW","exploitabilityScore":6.5,"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:a:ntp:ntp:4.2.8:p6:*:*:*:*:*:*","matchCriteriaId":"8C213794-111D-41F3-916C-AD97F731D600"},{"vulnerable":true,"criteria":"cpe:2.3:a:ntp:ntp:4.2.8:p7:*:*:*:*:*:*","matchCriteriaId":"50811A7B-0379-4437-8737-B4C1ACBC9EFD"},{"vulnerable":true,"criteria":"cpe:2.3:a:ntp:ntp:4.2.8:p8:*:*:*:*:*:*","matchCriteriaId":"F12E4CF5-536C-416B-AD8D-6AE7CBE22C71"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2016","CveId":"7428","Ordinal":"1","Title":"CVE-2016-7428","CVE":"CVE-2016-7428","Year":"2016"},"notes":[{"CveYear":"2016","CveId":"7428","Ordinal":"1","NoteData":"ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (reject broadcast mode packets) via the poll interval in a broadcast packet.","Type":"Description","Title":"CVE-2016-7428"},{"CveYear":"2016","CveId":"7428","Ordinal":"2","NoteData":"2017-01-13","Type":"Other","Title":"Published"},{"CveYear":"2016","CveId":"7428","Ordinal":"3","NoteData":"2019-01-24","Type":"Other","Title":"Modified"}]}}}