{"api_version":"1","generated_at":"2026-06-02T18:12:29+00:00","cve":"CVE-2026-42000","urls":{"html":"https://cve.report/CVE-2026-42000","api":"https://cve.report/api/cve/CVE-2026-42000.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-42000","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-42000"},"summary":{"title":"Insufficient Validation of Names During AXFR","description":"Insufficient Validation of Names During AXFR","state":"PUBLISHED","assigner":"OX","published_at":"2026-05-21 10:16:25","updated_at":"2026-05-26 19:38:25"},"problem_types":["CWE-77","Improper Neutralization of Special Elements used in a Command ('Command Injection')","CWE-77 CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"8.6","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","baseScore":8.6,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"security@open-xchange.com","type":"Secondary","score":"6.8","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N","baseScore":6.8,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"6.8","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N","data":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.8,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N","version":"3.1"}}],"references":[{"url":"https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-06.html","name":"https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-06.html","refsource":"security@open-xchange.com","tags":["Broken Link"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-42000","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42000","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"PowerDNS","product":"Authoritative","version":"affected 4.9.0 4.9.15 semver","platforms":[]},{"source":"CNA","vendor":"PowerDNS","product":"Authoritative","version":"affected 5.0.0 5.0.5 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"ilhamaf","lang":"en"}],"nvd_cpes":[{"cve_year":"2026","cve_id":"42000","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"powerdns","cpe5":"authoritative","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"42000","cve":"CVE-2026-42000","epss":"0.000160000","percentile":"0.040200000","score_date":"2026-05-27","updated_at":"2026-05-28 00:02:13"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-42000","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-05-21T12:01:48.669083Z","version":"2.0.3"},"type":"ssvc"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-77","description":"CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-21T12:02:35.449Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"collectionURL":"https://repo.powerdns.com/","defaultStatus":"unaffected","modules":["BIND Backend"],"packageName":"pdns","product":"Authoritative","programFiles":["bindbackend2.cc"],"repo":"https://github.com/PowerDNS/pdns","vendor":"PowerDNS","versions":[{"lessThan":"4.9.15","status":"affected","version":"4.9.0","versionType":"semver"},{"lessThan":"5.0.5","status":"affected","version":"5.0.0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"ilhamaf"}],"datePublic":"2026-05-19T22:00:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Insufficient Validation of Names During AXFR</p>"}],"value":"Insufficient Validation of Names During AXFR"}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.8,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"description":"Improper Neutralization of Special Elements used in a Command ('Command Injection')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-05-21T09:25:43.728Z","orgId":"8ce71d90-2354-404b-a86e-bec2cc4e6981","shortName":"OX"},"references":[{"url":"https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-06.html"}],"source":{"discovery":"UNKNOWN"},"title":"Insufficient Validation of Names During AXFR","x_generator":{"engine":"Vulnogram 1.0.2"}}},"cveMetadata":{"assignerOrgId":"8ce71d90-2354-404b-a86e-bec2cc4e6981","assignerShortName":"OX","cveId":"CVE-2026-42000","datePublished":"2026-05-21T09:25:43.728Z","dateReserved":"2026-04-23T11:15:21.198Z","dateUpdated":"2026-05-21T12:02:35.449Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-21 10:16:25","lastModifiedDate":"2026-05-26 19:38:25","problem_types":["CWE-77","Improper Neutralization of Special Elements used in a Command ('Command Injection')","CWE-77 CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')"],"metrics":{"cvssMetricV31":[{"source":"security@open-xchange.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N","baseScore":6.8,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.2,"impactScore":4},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","baseScore":8.6,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":4}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*","versionEndExcluding":"4.9.15","matchCriteriaId":"FD3DAE44-8B1C-499A-8F35-22FB378F7417"},{"vulnerable":true,"criteria":"cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0.0","versionEndExcluding":"5.0.5","matchCriteriaId":"2A4E1802-A1AB-4058-A3DB-E514F6C07E30"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"42000","Ordinal":"1","Title":"Insufficient Validation of Names During AXFR","CVE":"CVE-2026-42000","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"42000","Ordinal":"1","NoteData":"Insufficient Validation of Names During AXFR","Type":"Description","Title":"Insufficient Validation of Names During AXFR"}]}}}