{ "dataType": "CVE_RECORD", "cveMetadata": { "cveId": "CVE-2026-42255", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "state": "PUBLISHED", "assignerShortName": "mitre", "dateReserved": "2026-04-26T02:48:44.278Z", "datePublished": "2026-04-26T02:48:44.810Z", "dateUpdated": "2026-04-26T03:10:30.349Z" }, "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "packageURL": "pkg:docker/technitium/dns-server", "product": "DnsServer", "vendor": "Technitium", "versions": [ { "lessThan": "15.0.0", "status": "affected", "version": "0", "versionType": "custom" } ] } ], "descriptions": [ { "lang": "en", "value": "Technitium DNS Server before 15.0 allows DNS traffic amplification via cyclic name server delegation." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.2, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-684", "description": "CWE-684 Incorrect Provision of Specified Functionality", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-04-26T03:10:30.349Z" }, "references": [ { "url": "https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#technitium-dns-server-change-log" } ], "x_generator": { "engine": "CVE-Request-form 0.0.1" }, "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:technitium:dnsserver:*:*:*:*:*:*:*:*", "versionEndExcluding": "15.0.0" } ] } ] } ] } }, "dataVersion": "5.2" }