{"affected":[{"defaultStatus":"unaffected","ecosystem":"cargo","packageName":"hickory-proto","product":"hickory-dns","source":"CNA: VulnCheck","vendor":"hickory-dns","versions":[{"lessThan":"0.26.2","status":"affected","version":"0.20.1","versionType":"semver"},{"status":"unaffected","version":"0.26.2","versionType":"semver"}]}],"cveId":"CVE-2026-123573","cwes":["CWE-20"],"description":"hickory-dns from 0.20.1 before 0.26.2 contains a denial of service vulnerability in the hickory-proto SVCB and HTTPS record presentation format parser. Attackers can supply untrusted zone files where only a single or double quote replaces a service parameter value, triggering a panic that crashes the parsing process.","epss":{"date":"2026-11-10","percentile":0.28137,"score":0.00343},"exploits":[],"kev":null,"metrics":[{"score":8.7,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":7.5,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},{"score":8.7,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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","version":"4.0"},{"score":7.5,"severity":"high","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1794333489934,"publishedAt":1794101889961,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-wgfr-mphw-j5g4"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/hickory-dns-from-0.20.1-before-0.26.2-panic-in-svcb-https-zone-file-parser"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-wgfr-mphw-j5g4"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/hickory-dns-from-0.20.1-before-0.26.2-panic-in-svcb-https-zone-file-parser"}],"remediation":[],"revision":"eabea73566ec9afcd4004f61f42138c569c6b170c3ee901815d848f1d5a40079","sources":[{"modifiedAt":1794333489934,"name":"CNA: VulnCheck","retrievedAt":1794334219825,"url":"https://www.cve.org/CVERecord?id=CVE-2026-123573"},{"modifiedAt":1794104210297,"name":"NVD","retrievedAt":1794118577275,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123573"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794334233772,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-123573"}],"ssvc":{"assessedAt":1794328164337,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"hickory-dns from 0.20.1 before 0.26.2 Panic in SVCB/HTTPS Zone File Parser","updatedAt":1794334233772}