{"action":"Upgrade nsd to 4.15.1-1 or later.","affected":[{"fixed":"4.15.1-1","introduced":"0"}],"component":"nsd","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["4.15.1-1"],"id":"tcs_01M5NQXHRQ6B32KMKT88CEF2TP","modified_at":"2026-10-01T03:02:57.202949821Z","published_at":"2026-08-26T09:16:45.857Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-19401","https://security-tracker.debian.org/tracker/CVE-2026-19401"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-19401#Debian:14/nsd","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-19401"}],"summary":"Any remote client can crash a (debugging/non-release build type) NSD serve child by sending it a special crafted message with a specially tuned number of DNS Cookie options (17 when UDP payload size i"}