{"id":"CVE-2024-56946","details":"Denial of service in DNS-over-QUIC in Technitium DNS Server \u003c= v13.2.2 allows remote attackers to permanently stop the server from accepting new DNS-over-QUIC connections by triggering unhandled exceptions in listener threads.","modified":"2026-08-12T03:51:17.281596566Z","published":"2025-02-03T00:00:00Z","database_specific":{"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56946.json"},"references":[{"type":"WEB","url":"https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#version-133"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56946.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-56946"},{"type":"FIX","url":"https://github.com/TechnitiumSoftware/DnsServer/commit/a7d1cfb6e836798ef9171677bf8919cf99d9dcb0"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/technitiumsoftware/dnsserver","events":[{"introduced":"0"},{"fixed":"fcd631b81ba366c7d3e443b8f8103f29a90ea3fe"},{"fixed":"a7d1cfb6e836798ef9171677bf8919cf99d9dcb0"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:technitium:dnsserver:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"13.3"}]}}],"versions":["v13.2.2","v13.2.1","v13.2","v13.1.1","v13.1","v13.0.2","v12.2.1","v12.2","v12.1","v12.0.1","v12.0","v11.5.3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-56946.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AC:L/AV:N/A:L/C:N/I:N/PR:N/S:U/UI:N"}]}