{"cve":"CVE-2018-7184","nvd":{"published":"2018-03-06T20:29:01.437","modified":"2026-06-17T02:02:45.553","status":"Modified","description":"ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the \"received\" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":[],"references":["http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html","http://support.ntp.org/bin/view/Main/NtpBug3453","http://www.securityfocus.com/archive/1/541824/100/0/threaded","http://www.securityfocus.com/bid/103192","https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc"],"products":["canonical:ubuntu_linux","netapp:cloud_backup","netapp:steelstore_cloud_integrated_storage","ntp:ntp","slackware:slackware_linux","synology:diskstation_manager","synology:router_manager","synology:skynas","synology:virtual_diskstation_manager","synology:vs960hd_firmware"],"source":"nvd","synced_at":"2026-10-19T20:48:50.842038930+00:00"},"epss":{"cve":"CVE-2018-7184","score":0.08633,"percentile":0.95103,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}