{"id":"CVE-2026-42255","aliases":["EUVD-2026-25688","GHSA-v7f3-6mf2-m8hj"],"status":"published","title":"Technitium DNS Server before 15.0 allows DNS traffic amplification via cyclic name server...","description":"Technitium DNS Server before 15.0 allows DNS traffic amplification via cyclic name server delegation.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00207,"percentile":0.10914,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-684"],"published":"2026-04-26T02:48:44Z","modified":"2026-10-28T02:31:12Z","products":[{"vendor":"technitium","product":"dnsserver"}],"references":[{"url":"https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#technitium-dns-server-change-log","tags":["Release Notes","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42255","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-v7f3-6mf2-m8hj"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42255.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-42255","description":"Technitium DNS Server before 15.0 allows DNS traffic amplification via cyclic name server delegation.","status":"published","published":"2026-04-26T02:48:44.81Z","modified":"2026-04-27T13:31:57.425Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L","level":"high","assessor":"cna"}],"cwes":["CWE-684"],"updated_at":"2026-11-02T13:40:23.731501Z"}],"euvd":[{"id":"EUVD-2026-25688","description":"Technitium DNS Server before 15.0 allows DNS traffic amplification via cyclic name server delegation.","status":"published","published":"2026-04-26T02:48:44Z","modified":"2026-04-27T13:31:57Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L","level":"high"}],"updated_at":"2026-11-02T19:24:17.84353Z"}],"ghsa":[{"id":"GHSA-v7f3-6mf2-m8hj","title":"Technitium DNS Server before 15.0 allows DNS traffic amplification via cyclic name server...","description":"Technitium DNS Server before 15.0 allows DNS traffic amplification via cyclic name server delegation.","status":"published","published":"2026-04-26T06:31:16Z","modified":"2026-04-26T06:31:21Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L","level":"high"}],"cwes":["CWE-684"],"updated_at":"2026-11-02T15:07:38.391524Z"}],"nvd":[{"id":"CVE-2026-42255","description":"Technitium DNS Server before 15.0 allows DNS traffic amplification via cyclic name server delegation.","status":"published","published":"2026-04-26T04:16:05.787Z","modified":"2026-10-26T21:10:00.17Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L","level":"high","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"primary"}],"cwes":["CWE-684"],"updated_at":"2026-11-02T14:12:16.252509Z"}],"osv":[{"id":"CVE-2026-42255","description":"Technitium DNS Server before 15.0 allows DNS traffic amplification via cyclic name server delegation.","status":"published","published":"2026-04-26T02:48:44.81Z","modified":"2026-10-28T02:31:12.374774753Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L","level":"high"}],"cwes":["CWE-684"],"updated_at":"2026-11-02T15:45:04.117819Z"}]}}