{"schema_version":1,"title":"Nlnetlabs Nsd vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in Nlnetlabs Nsd: 0 in the last 7 days and 4 in the last 90 days, 1 of them critical and 0 exploited in the wild. The most recent, CVE-2026-19538, was published on 26 August 2026.","url":"https://junglewise.ai/threats/technologies/nsd","json_url":"https://junglewise.ai/threats/technologies/nsd.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/nsd","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":3,"all_time":4,"critical":1,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":4,"last_365_days":4},"latest":[{"cve":"CVE-2026-19538","cvss":7.5,"epss":0.0023,"slug":"cve-2026-19538-nsd-access-control-list-bypass-via-proxy-protocol","title":"NSD access control list bypass via proxy protocol","severity":"high","exploited":false,"published_at":"2026-08-26T09:16:46.057+00:00","url":"https://junglewise.ai/threats/cve-2026-19538-nsd-access-control-list-bypass-via-proxy-protocol"},{"cve":"CVE-2026-19401","cvss":7.5,"epss":0.0028,"slug":"cve-2026-19401-nlnetlabs-nsd-denial-of-service-via-crafted-dns-cookie-options","title":"NLnetLabs NSD denial of service via crafted DNS Cookie options","severity":"high","exploited":false,"published_at":"2026-08-26T09:16:45.857+00:00","url":"https://junglewise.ai/threats/cve-2026-19401-nlnetlabs-nsd-denial-of-service-via-crafted-dns-cookie-options"},{"cve":"CVE-2026-18916","cvss":7.5,"epss":0.0028,"slug":"cve-2026-18916-nsd-denial-of-service-via-tcp-receive-window-throttling","title":"NSD denial of service via TCP receive window throttling","severity":"high","exploited":false,"published_at":"2026-08-26T09:16:45.597+00:00","url":"https://junglewise.ai/threats/cve-2026-18916-nsd-denial-of-service-via-tcp-receive-window-throttling"},{"cve":"CVE-2026-18664","cvss":9.1,"epss":0.0026,"slug":"cve-2026-18664-nlnet-labs-nsd-ip-range-access-control-bypass","title":"NLnet Labs NSD IP range access control bypass","severity":"critical","exploited":false,"published_at":"2026-08-26T09:16:45.437+00:00","url":"https://junglewise.ai/threats/cve-2026-18664-nlnet-labs-nsd-ip-range-access-control-bypass"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":1,"exploited":0,"vulnerabilities":4},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[],"technology":{"hub":true,"name":"Nlnetlabs Nsd","slug":"nsd","vendor":{"name":"Nlnetlabs","slug":"nlnetlabs","url":"https://junglewise.ai/threats/vendors/nlnetlabs"},"aliases":[],"category":"dns-server","homepage":"https://www.nlnetlabs.nl/projects/nsd/","repo_url":"https://github.com/NLnetLabs/nsd","description":"An authoritative-only, high-performance name server implementation designed for the Domain Name System.","url":"https://junglewise.ai/threats/technologies/nsd"},"most_severe":[{"cve":"CVE-2026-18664","cvss":9.1,"epss":0.0026,"slug":"cve-2026-18664-nlnet-labs-nsd-ip-range-access-control-bypass","title":"NLnet Labs NSD IP range access control bypass","severity":"critical","exploited":false,"published_at":"2026-08-26T09:16:45.437+00:00","url":"https://junglewise.ai/threats/cve-2026-18664-nlnet-labs-nsd-ip-range-access-control-bypass"},{"cve":"CVE-2026-19401","cvss":7.5,"epss":0.0028,"slug":"cve-2026-19401-nlnetlabs-nsd-denial-of-service-via-crafted-dns-cookie-options","title":"NLnetLabs NSD denial of service via crafted DNS Cookie options","severity":"high","exploited":false,"published_at":"2026-08-26T09:16:45.857+00:00","url":"https://junglewise.ai/threats/cve-2026-19401-nlnetlabs-nsd-denial-of-service-via-crafted-dns-cookie-options"},{"cve":"CVE-2026-18916","cvss":7.5,"epss":0.0028,"slug":"cve-2026-18916-nsd-denial-of-service-via-tcp-receive-window-throttling","title":"NSD denial of service via TCP receive window throttling","severity":"high","exploited":false,"published_at":"2026-08-26T09:16:45.597+00:00","url":"https://junglewise.ai/threats/cve-2026-18916-nsd-denial-of-service-via-tcp-receive-window-throttling"},{"cve":"CVE-2026-19538","cvss":7.5,"epss":0.0023,"slug":"cve-2026-19538-nsd-access-control-list-bypass-via-proxy-protocol","title":"NSD access control list bypass via proxy protocol","severity":"high","exploited":false,"published_at":"2026-08-26T09:16:46.057+00:00","url":"https://junglewise.ai/threats/cve-2026-19538-nsd-access-control-list-bypass-via-proxy-protocol"}],"generated_at":"2026-09-26T09:11:00.170868+00:00"}