{"cve":"CVE-2020-8621","nvd":{"published":"2020-08-21T21:15:12.167","modified":"2026-06-17T03:26:39.763","status":"Modified","description":"In BIND 9.14.0 -> 9.16.5, 9.17.0 -> 9.17.3, If a server is configured with both QNAME minimization and 'forward first' then an attacker who can send queries to it may be able to trigger the condition that will cause the server to crash. Servers that 'forward only' are not affected.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-617"],"references":["http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html","http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html","https://kb.isc.org/docs/cve-2020-8621","https://security.gentoo.org/glsa/202008-19","https://security.netapp.com/advisory/ntap-20200827-0003/"],"products":["canonical:ubuntu_linux","isc:bind","netapp:steelstore_cloud_integrated_storage","opensuse:leap","synology:dns_server"],"source":"nvd","synced_at":"2026-10-19T21:09:20.498348299+00:00"},"epss":{"cve":"CVE-2020-8621","score":0.03065,"percentile":0.87624,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}