{"schema":"threatline.record/2","record":{"id":"CVE-2026-19630","aliases":[],"summary":"Amplified resource exhaustion in inbound message processing","details":"In a BIND resolver, inbound DNS protocol messages with a particular structure will result in additional processing, with no limit imposed by BIND.  A DNS message with a maliciously large number of such structures will cause BIND to consume disproportionate amounts of CPU time and memory during processing.\nThis issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.29, 9.21.0 through 9.21.26, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.29-S1.","categories":["Unclassified"],"product":"BIND 9","vendor":"ISC","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-19630","source_modified_at":"2026-10-21T17:19:14.434Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"BIND 9","vendor":"ISC","versions":[{"version":"9.11.0","lessThanOrEqual":"9.18.50","status":"affected","versionType":"custom"},{"version":"9.20.0","lessThanOrEqual":"9.20.29","status":"affected","versionType":"custom"},{"version":"9.21.0","lessThanOrEqual":"9.21.26","status":"affected","versionType":"custom"},{"version":"9.11.3-S1","lessThanOrEqual":"9.18.50-S1","status":"affected","versionType":"custom"},{"version":"9.20.9-S1","lessThanOrEqual":"9.20.29-S1","status":"affected","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":7.5,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00448,"percentile":0.37962,"score_date":"2026-10-23"},"published_at":"2026-10-21T12:41:04.379Z","modified_at":"2026-10-21T17:19:14.434Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-19630","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-21T17:19:14.434Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-19630","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://kb.isc.org/docs/cve-2026-19630","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://downloads.isc.org/isc/bind9/9.20.30","tags":["patch"]},{"source":"CVE List","url":"https://downloads.isc.org/isc/bind9/9.21.27","tags":["patch"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-21T15:19:21.749441Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-21T17:19:14.434Z","content_hash":"12f5b990c7cbabdc143f4691b4ad6b0e742217d89ce1b64ae605475c1fc61ddd"}}