{"action":"Upgrade ntp to 1:4.2.8p8+dfsg-1 or later.","affected":[{"fixed":"1:4.2.8p8+dfsg-1","introduced":"0"}],"component":"ntp","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:11","exploited":false,"fixed_versions":["1:4.2.8p8+dfsg-1"],"id":"tcs_01M5NBM5SZXDAS1XD7B96XPKBB","modified_at":"2026-08-04T06:04:47.328305130Z","published_at":"2016-07-05T01:59:02.267Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2016-4955","https://security-tracker.debian.org/tracker/CVE-2016-4955"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2016-4955","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2016-4955"}],"summary":"ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service (peer-variable clearing and association outage) by sending (1) a spoofed crypto-NAK packet"}