{"id":"CVE-2026-13321","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-13321","summary":"The BIND resolver accepts validly-signed NSEC records where the \"Next Domain Name\" field points outside the signer's zone.\nThis issue affects BIND 9 versions 9.11.0 through 9.18.50,…","details":"The BIND resolver accepts validly-signed NSEC records where the \"Next Domain Name\" field points outside the signer's zone.\nThis issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.","published":"2026-07-22T14:16:10.450Z","modified":"2026-07-22T18:51:47.414Z","cvss":{"score":8.6,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N"},"epss":{"score":0.00223,"percentile":0.12812,"asOf":"2026-09-04"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://kb.isc.org/docs/cve-2026-13321"},{"type":"FIX","url":"https://downloads.isc.org/isc/bind9/9.20.26"},{"type":"FIX","url":"https://downloads.isc.org/isc/bind9/9.21.24"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-07-22T18:51:47.414Z"}}