{"id":"CVE-2026-47703","revision":"3d425a0d4d394be597e3732f6fb9a78d","records":[{"revision":"3d425a0d4d394be597e3732f6fb9a78d","observedAt":"2026-10-25T12:17:26.301+00:00","statement":{"source":"nvd","id":"CVE-2026-47703","aliases":[],"title":"AdGuard Home is a network-wide software for blocking ads and tracking. Prior to 0.107.75, AdGuard Home's client-triggered DoQ forwarding path to a udp:// upstream reduced backend UDP DNS state by producing dns_id=0 or txid=0 and exposed a q…","description":"AdGuard Home is a network-wide software for blocking ads and tracking. Prior to 0.107.75, AdGuard Home's client-triggered DoQ forwarding path to a udp:// upstream reduced backend UDP DNS state by producing dns_id=0 or txid=0 and exposed a quoted-port ICMP source-port oracle, weakening DNS response matching for forwarded queries. This issue is fixed in version 0.107.75.","state":0,"publishedAt":"2026-07-15T17:16:48.54+00:00","modifiedAt":"2026-10-24T21:10:00.13+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":6.3,"severity":"MEDIUM"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/AdguardTeam/AdGuardHome/security/advisories/GHSA-xgx4-4h9w-53pv"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-47703","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-330","CWE-346"],"productCriteria":["cpe:2.3:a:adguard:adguardhome:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-07-15T17:16:48.540","lastModified":"2026-10-24T21:10:00.130"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-47703","identifiers":["CVE-2026-47703"]},"retained":false,"historicalAffected":[]}],"coverage":[]}