{"id":"CVE-2016-9312","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-9312","generatedAt":"2026-10-28T19:47:59.055Z","title":"ntpd in NTP before 4.2.8p9, when running on Windows, allows remote attackers to cause a denial of service via a large UDP packet.","description":"ntpd in NTP before 4.2.8p9, when running on Windows, allows remote attackers to cause a denial of service via a large UDP packet.","published":"2017-01-13T16:59:01.000Z","lastModified":"2026-06-17T00:55:49.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-399"],"affected":["ntp/ntp"],"epss":{"score":0.31715,"percentile":0.98287,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.09175,"percentile":0.95159},{"date":"2026-09-22","score":0.31192,"percentile":0.98191}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 31.7%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-22T00:00:00.000Z","detail":{"to":0.31192,"from":0.09175,"percentile":0.98191},"summary":"EPSS moved from 9.2% to 31.2% probability of exploitation in the next thirty days."},{"kind":"epss","label":"EPSS jump","at":"2026-09-21T00:00:00.000Z","detail":{"to":0.09175,"from":0.31192,"percentile":0.95159},"summary":"EPSS moved from 31.2% to 9.2% probability of exploitation in the next thirty days."}],"references":[{"url":"http://nwtime.org/ntp428p9_release/","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://support.ntp.org/bin/view/Main/NtpBug3110","tags":["Issue Tracking","Mitigation","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/94450","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1037354","source":"cve@mitre.org"},{"url":"https://bto.bluecoat.com/security-advisory/sa139","source":"cve@mitre.org"},{"url":"https://www.kb.cert.org/vuls/id/633847","tags":["Third Party Advisory","US Government Resource"],"source":"cve@mitre.org"},{"url":"http://nwtime.org/ntp428p9_release/","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://support.ntp.org/bin/view/Main/NtpBug3110","tags":["Issue Tracking","Mitigation","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/94450","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1037354","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bto.bluecoat.com/security-advisory/sa139","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.kb.cert.org/vuls/id/633847","tags":["Third Party Advisory","US Government Resource"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-9312","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}