{"id":"DEBIAN-CVE-2026-18916","details":"Any remote client can crash a NSD serve child, by throttling the TCP receive window after a TCP query. By continuously crashing the serve childs, the remote client can denial all TCP service to this NSD instance.","modified":"2026-09-09T09:00:08.710192050Z","published":"2026-08-26T09:16:45.597Z","upstream":["CVE-2026-18916"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-18916"}],"affected":[{"package":{"name":"nsd","ecosystem":"Debian:12","purl":"pkg:deb/debian/nsd?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.10.1-1","4.10.1~rc2-1","4.10.1~rc2-2","4.11.0-1","4.11.1-1","4.12.0-1","4.12.0-2","4.13.0-1","4.13.0-2","4.13.0-3","4.13.0-4","4.13.0-5","4.13.0-6","4.14.0-1","4.14.1-1","4.14.2-1","4.14.3-1","4.15.0-1","4.15.0~rc1-1","4.15.1-1","4.15.2-1","4.6.1-1","4.7.0-1","4.8.0-1","4.9.1-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18916.json"}},{"package":{"name":"nsd","ecosystem":"Debian:13","purl":"pkg:deb/debian/nsd?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.12.0-1","4.12.0-2","4.13.0-1","4.13.0-2","4.13.0-3","4.13.0-4","4.13.0-5","4.13.0-6","4.14.0-1","4.14.1-1","4.14.2-1","4.14.3-1","4.15.0-1","4.15.0~rc1-1","4.15.1-1","4.15.2-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18916.json"}},{"package":{"name":"nsd","ecosystem":"Debian:14","purl":"pkg:deb/debian/nsd?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.1-1"}]}],"versions":["4.12.0-1","4.12.0-2","4.13.0-1","4.13.0-2","4.13.0-3","4.13.0-4","4.13.0-5","4.13.0-6","4.14.0-1","4.14.1-1","4.14.2-1","4.14.3-1","4.15.0-1","4.15.0~rc1-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18916.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}