{"api_version":"1","generated_at":"2026-04-22T16:31:54+00:00","cve":"CVE-2026-24028","urls":{"html":"https://cve.report/CVE-2026-24028","api":"https://cve.report/api/cve/CVE-2026-24028.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-24028","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-24028"},"summary":{"title":"Out-of-bounds read when parsing DNS packets via Lua","description":"An attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets. The out-of-bounds read might trigger a crash, leading to a denial of service, or access unrelated memory, leading to potential information disclosure.","state":"PUBLISHED","assigner":"OX","published_at":"2026-03-31 12:16:27","updated_at":"2026-04-14 16:27:24"},"problem_types":["CWE-126","Buffer Over-read","CWE-126 CWE-126 Buffer Over-read"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"8.2","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"security@open-xchange.com","type":"Secondary","score":"5.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"5.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"}}],"references":[{"url":"https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html","name":"https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html","refsource":"security@open-xchange.com","tags":["Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-24028","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-24028","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"PowerDNS","product":"DNSdist","version":"affected 1.9.0 1.9.12 semver","platforms":[]},{"source":"CNA","vendor":"PowerDNS","product":"DNSdist","version":"affected 2.0.0 2.0.3 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Naoki Wakamatsu","lang":"en"}],"nvd_cpes":[{"cve_year":"2026","cve_id":"24028","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"powerdns","cpe5":"dnsdist","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"24028","cve":"CVE-2026-24028","epss":"0.000150000","percentile":"0.028930000","score_date":"2026-04-07","updated_at":"2026-04-08 00:03:40"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-24028","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-03-31T13:18:03.818786Z","version":"2.0.3"},"type":"ssvc"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-126","description":"CWE-126 Buffer Over-read","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-03-31T13:18:41.769Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"collectionURL":"https://repo.powerdns.com/","defaultStatus":"unaffected","modules":["Lua DNS parser"],"packageName":"dnsdist","product":"DNSdist","programFiles":["dnsparser.hh"],"repo":"https://github.com/PowerDNS/pdns","vendor":"PowerDNS","versions":[{"lessThan":"1.9.12","status":"affected","version":"1.9.0","versionType":"semver"},{"lessThan":"2.0.3","status":"affected","version":"2.0.0","versionType":"semver"}]}],"credits":[{"lang":"en","type":"finder","value":"Naoki Wakamatsu"}],"datePublic":"2026-03-30T22:00:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>An attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets. The out-of-bounds read might trigger a crash, leading to a denial of service, or access unrelated memory, leading to potential information disclosure.</p>"}],"value":"An attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets. The out-of-bounds read might trigger a crash, leading to a denial of service, or access unrelated memory, leading to potential information disclosure."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"description":"Buffer Over-read","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-03-31T11:57:26.914Z","orgId":"8ce71d90-2354-404b-a86e-bec2cc4e6981","shortName":"OX"},"references":[{"url":"https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-02.html"}],"source":{"discovery":"UNKNOWN"},"title":"Out-of-bounds read when parsing DNS packets via Lua","x_generator":{"engine":"Vulnogram 0.5.0"}}},"cveMetadata":{"assignerOrgId":"8ce71d90-2354-404b-a86e-bec2cc4e6981","assignerShortName":"OX","cveId":"CVE-2026-24028","datePublished":"2026-03-31T11:57:26.914Z","dateReserved":"2026-01-20T14:56:25.872Z","dateUpdated":"2026-03-31T13:18:41.769Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-03-31 12:16:27","lastModifiedDate":"2026-04-14 16:27:24","problem_types":["CWE-126","Buffer Over-read","CWE-126 CWE-126 Buffer Over-read"],"metrics":{"cvssMetricV31":[{"source":"security@open-xchange.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":3.9,"impactScore":1.4},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":4.2}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:*","versionStartIncluding":"1.9.0","versionEndExcluding":"1.9.12","matchCriteriaId":"628B3B94-81DE-496E-B36A-B79A3DFFE1F4"},{"vulnerable":true,"criteria":"cpe:2.3:a:powerdns:dnsdist:*:*:*:*:*:*:*:*","versionStartIncluding":"2.0.0","versionEndExcluding":"2.0.3","matchCriteriaId":"9AC850DD-FDD8-4C48-B861-4BBAF423FF57"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"24028","Ordinal":"1","Title":"Out-of-bounds read when parsing DNS packets via Lua","CVE":"CVE-2026-24028","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"24028","Ordinal":"1","NoteData":"An attacker might be able to trigger an out-of-bounds read by sending a crafted DNS response packet, when custom Lua code uses newDNSPacketOverlay to parse DNS packets. The out-of-bounds read might trigger a crash, leading to a denial of service, or access unrelated memory, leading to potential information disclosure.","Type":"Description","Title":"Out-of-bounds read when parsing DNS packets via Lua"}]}}}