{"action":"Upgrade ntp to 1:4.2.8p7+dfsg-1 or later.","affected":[{"fixed":"1:4.2.8p7+dfsg-1","introduced":"0"}],"component":"ntp","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:11","exploited":false,"fixed_versions":["1:4.2.8p7+dfsg-1"],"id":"tcs_01M5NBA7F6W5BQKS0VTARGKWTB","modified_at":"2026-08-27T23:02:07.720239570Z","published_at":"2016-01-26T19:59:00.107Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2015-7974","https://security-tracker.debian.org/tracker/CVE-2015-7974"],"severity":{"label":"high","score":7.7},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2015-7974","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2015-7974"}],"summary":"NTP 4.x before 4.2.8p6 and 4.3.x before 4.3.90 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an"}