{"id":"CVE-2018-7183","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-7183","generatedAt":"2026-10-28T23:37:54.186Z","title":"Buffer overflow in the decodearr function in ntpq in ntp 4.2.8p6 through 4.2.8p10 allows remote attackers to execute arbitrary code by leveraging an ntpq query and sending a response with a crafted array.","description":"Buffer overflow in the decodearr function in ntpq in ntp 4.2.8p6 through 4.2.8p10 allows remote attackers to execute arbitrary code by leveraging an ntpq query and sending a response with a crafted array.","published":"2018-03-08T20:29:00.000Z","lastModified":"2026-06-17T02:02:45.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-787"],"affected":["ntp/ntp","freebsd/freebsd","canonical/ubuntu linux","netapp/element software"],"epss":{"score":0.10213,"percentile":0.95648,"date":"2026-10-27","history":[]},"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 10.2%, higher than 96% 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":0.10213,"from":0.09796,"percentile":0.95459},"summary":"EPSS moved from 9.8% to 10.2% probability of exploitation in the next thirty days."}],"references":[{"url":"http://support.ntp.org/bin/view/Main/NtpBug3414","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://support.ntp.org/bin/view/Main/SecurityNotice#February_2018_ntp_4_2_8p11_NTP_S","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/103351","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201805-12","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20180626-0001/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us","source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/3707-1/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/3707-2/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.oracle.com//security-alerts/cpujul2021.html","source":"cve@mitre.org"},{"url":"https://www.synology.com/support/security/Synology_SA_18_13","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://support.ntp.org/bin/view/Main/NtpBug3414","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://support.ntp.org/bin/view/Main/SecurityNotice#February_2018_ntp_4_2_8p11_NTP_S","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/103351","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201805-12","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20180626-0001/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3707-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3707-2/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.oracle.com//security-alerts/cpujul2021.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.synology.com/support/security/Synology_SA_18_13","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-7183","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."}