{"api_version":"1","generated_at":"2026-04-23T11:35:27+00:00","cve":"CVE-2022-30699","urls":{"html":"https://cve.report/CVE-2022-30699","api":"https://cve.report/api/cve/CVE-2022-30699.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2022-30699","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-30699"},"summary":{"title":"CVE-2022-30699","description":"NLnet Labs Unbound, up to and including version 1.16.1, is vulnerable to a novel type of the \"ghost domain names\" attack. The vulnerability works by targeting an Unbound instance. Unbound is queried for a rogue domain name when the cached delegation information is about to expire. The rogue nameserver delays the response so that the cached delegation information is expired. Upon receiving the delayed answer containing the delegation information, Unbound overwrites the now expired entries. 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