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NLnet Labs is a Dutch nonprofit foundation that develops free, liberally licensed open-source software for DNS and BGP routing. Its mission combines software engineering, applied Internet research, standards work, and community support to improve the security, reliability, and privacy of Internet infrastructure. It operates as a focused organization serving the international Internet ecosystem.
CyStack VulnScan continuously discovers assets, validates vulnerabilities, and helps security teams prioritize remediation across the organization.
As of 10/19/2026, NLnet Labs recorded 41 security vulnerabilities in the last 90 days across 2 products, including 14 rated High or above and 0 known exploited vulnerabilities (KEV) that should be prioritized for immediate remediation.
Over the last 90 days, Unbound had the most security vulnerabilities in the NLnet Labs ecosystem, with 33 vulnerabilities—approximately 80.49% of the provider's total vulnerabilities during this period.
CVE-2026-101341Stack overwrite from specially formatted TXT-DATA RDATA fieldCVE-2026-101339Stack overwrite from a specially crafted and formatted HIP RRCVE-2026-101338Stack overwrite from a specially crafted and formatted SVCB or HTTPS RRCVE-2026-101337Stack overwrite from specially formatted base64 RDATA fieldCVE-2026-85501Retrap: Novel Vulnerabilities to launch Algorithmic Complexity Attacks on DNSSEC81 Results | Page 1 of 9
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