{"id":"CVE-2026-19630","published":"2026-10-21T13:18:32.453","lastModified":"2026-10-26T21:10:00.170","description":"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.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-407"],"vendors":[],"products":[],"references":[{"url":"https://downloads.isc.org/isc/bind9/9.20.30","tags":[]},{"url":"https://downloads.isc.org/isc/bind9/9.21.27","tags":[]},{"url":"https://kb.isc.org/docs/cve-2026-19630","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}