{"id":"CVE-2025-59023","state":"PUBLISHED","title":"Crafted delegations or IP fragments can poison cached delegations in Recursor","description":"Crafted delegations or IP fragments can poison cached delegations in Recursor.","publishedAt":"2026-02-09T14:44:19.331Z","updatedAt":"2026-02-09T16:17:46.019Z","severity":{"score":8.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L","source":"OX"},"assigner":"OX","products":["PowerDNS Recursor"],"affected":[{"vendor":"PowerDNS","product":"Recursor","packageName":"pdns-recursor","defaultStatus":"unaffected","versions":[{"version":"5.3.0","status":"affected","lessThan":"5.3.1","versionType":"semver"},{"version":"5.2.0","status":"affected","lessThan":"5.2.6","versionType":"semver"},{"version":"5.1.0","status":"affected","lessThan":"5.1.8","versionType":"semver"}],"collectionURL":"https://repo.powerdns.com/","modules":["Synchronous Resolver"],"programFiles":["syncres.cc"],"repo":"https://github.com/PowerDNS/pdns"}],"references":["https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-06.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:39.787Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/59xxx/CVE-2025-59023.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-59023","state":"PUBLISHED","datePublished":"2026-02-09T14:44:19.331Z","dateUpdated":"2026-02-09T16:17:46.019Z","assignerShortName":"OX","assignerOrgId":"8ce71d90-2354-404b-a86e-bec2cc4e6981","dateReserved":"2025-09-08T14:22:28.104Z"},"containers":{"cna":{"title":"Crafted delegations or IP fragments can poison cached delegations in Recursor","descriptions":[{"lang":"en","value":"Crafted delegations or IP fragments can poison cached delegations in Recursor."}],"affected":[{"vendor":"PowerDNS","product":"Recursor","packageName":"pdns-recursor","defaultStatus":"unaffected","versions":[{"version":"5.3.0","status":"affected","lessThan":"5.3.1","versionType":"semver"},{"version":"5.2.0","status":"affected","lessThan":"5.2.6","versionType":"semver"},{"version":"5.1.0","status":"affected","lessThan":"5.1.8","versionType":"semver"}],"collectionURL":"https://repo.powerdns.com/","modules":["Synchronous Resolver"],"programFiles":["syncres.cc"],"repo":"https://github.com/PowerDNS/pdns"}],"references":[{"url":"https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-06.html"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.2,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"description":"Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"OX","orgId":"8ce71d90-2354-404b-a86e-bec2cc4e6981","dateUpdated":"2026-02-09T14:44:19.331Z"},"credits":[{"lang":"en","type":"finder","value":"Yuxiao Wu from Tsinghua University"},{"lang":"en","type":"finder","value":"Yunyi Zhang from Tsinghua University"},{"lang":"en","type":"finder","value":"Baojun Liu from Tsinghua University"},{"lang":"en","type":"finder","value":"Haixin Duan from Tsinghua University"},{"lang":"en","type":"finder","value":"Shiming Liu from Network and Information Security Lab, Tsinghua University"}],"datePublic":"2025-10-15T10:00:00.000Z","source":{"advisory":"PowerDNS Security Advisory 2025-06","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-09T16:17:14.896463Z","id":"CVE-2025-59023","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-09T16:17:46.019Z"}}]}}}