{"action":"Upgrade knot-resolver to 5.1.1-0.1 or later.","affected":[{"fixed":"5.1.1-0.1","introduced":"0"}],"component":"knot-resolver","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["5.1.1-0.1"],"id":"tcs_01M5NEHYFTNP0DSB0R82HK5K2T","modified_at":"2026-10-26T12:00:29.440062667Z","published_at":"2020-05-19T13:15:11.763Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2020-12667","https://security-tracker.debian.org/tracker/CVE-2020-12667"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2020-12667#Debian:14/knot-resolver","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2020-12667"}],"summary":"Knot Resolver before 5.1.1 allows traffic amplification via a crafted DNS answer from an attacker-controlled server, aka an \"NXNSAttack\" issue. This is triggered by random subdomains in the NSDNAME in"}