CVE-2026-19941

{"id": "CVE-2026-19941", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "security-officer@isc.org", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-officer@isc.org", "affectedData": [{"vendor": "ISC", "product": "BIND 9", "versions": [{"status": "affected", "version": "9.11.0", "versionType": "custom", "lessThanOrEqual": "9.18.50"}, {"status": "affected", "version": "9.20.0", "versionType": "custom", "lessThanOrEqual": "9.20.27"}, {"status": "affected", "version": "9.21.0", "versionType": "custom", "lessThanOrEqual": "9.21.25"}, {"status": "affected", "version": "9.11.3-S1", "versionType": "custom", "lessThanOrEqual": "9.18.50-S1"}, {"status": "affected", "version": "9.20.9-S1", "versionType": "custom", "lessThanOrEqual": "9.20.27-S1"}], "defaultStatus": "unaffected"}]}], "published": "2026-09-16T14:17:05.160", "references": [{"url": "https://downloads.isc.org/isc/bind9/9.20.29", "source": "security-officer@isc.org"}, {"url": "https://downloads.isc.org/isc/bind9/9.21.26", "source": "security-officer@isc.org"}, {"url": "https://kb.isc.org/docs/cve-2026-19941", "source": "security-officer@isc.org"}], "vulnStatus": "Received", "weaknesses": [{"type": "Secondary", "source": "security-officer@isc.org", "description": [{"lang": "en", "value": "CWE-345"}]}], "descriptions": [{"lang": "en", "value": "An inapplicable NSEC record may be accepted by a `named` resolver as proof that no wildcard exists, which could allow an attacker at the same or an upstream level of the zone name to mask the existence of a victim's wildcard record.\nThis issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1."}], "lastModified": "2026-09-16T14:17:05.160", "sourceIdentifier": "security-officer@isc.org"}