{"cve":{"cve_id":"CVE-2020-8623","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.06348,"epss_percentile":0.92739,"epss_as_of":"2026-06-23","description":"In BIND 9.10.0 -> 9.11.21, 9.12.0 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.10.5-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker that can reach a vulnerable system with a specially crafted query packet can trigger a crash. To be vulnerable, the system must: * be running BIND that was built with \"--enable-native-pkcs11\" * be signing one or more zones with an RSA key * be able to receive queries from a possible attacker","published_at":"2020-08-21T20:50:19.797000Z","last_modified_at":null,"cvss_v3_score":7.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":null,"nvd_references":["https://kb.isc.org/docs/cve-2020-8623","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DQN62GBMCIC5AY4KYADGXNKVY6AJKSJE/","https://security.netapp.com/advisory/ntap-20200827-0003/","https://usn.ubuntu.com/4468-1/","https://www.debian.org/security/2020/dsa-4752","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZKAMJZXR66P6S5LEU4SN7USSNCWTXEXP/","https://lists.debian.org/debian-lts-announce/2020/08/msg00053.html","https://security.gentoo.org/glsa/202008-19","https://www.synology.com/security/advisory/Synology_SA_20_19","http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html","http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:14:37.312259Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"N","value_label":"None"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"isc","vendor_name":"ISC","product_slug":"bind9","product_name":"BIND9","version_start":"9.10.0","version_start_inclusive":true,"version_end":"unspecified","version_end_inclusive":false,"cpe23_uri":"cve5:isc:bind9:9.10.0:unspecified"},{"vendor_slug":"isc","vendor_name":"ISC","product_slug":"bind9","product_name":"BIND9","version_start":"unspecified","version_start_inclusive":true,"version_end":"9.11.22","version_end_inclusive":false,"cpe23_uri":"cve5:isc:bind9:unspecified:9.11.22"},{"vendor_slug":"isc","vendor_name":"ISC","product_slug":"bind9","product_name":"BIND9","version_start":"9.12.0","version_start_inclusive":true,"version_end":"unspecified","version_end_inclusive":false,"cpe23_uri":"cve5:isc:bind9:9.12.0:unspecified"},{"vendor_slug":"isc","vendor_name":"ISC","product_slug":"bind9","product_name":"BIND9","version_start":"unspecified","version_start_inclusive":true,"version_end":"9.16.6","version_end_inclusive":false,"cpe23_uri":"cve5:isc:bind9:unspecified:9.16.6"},{"vendor_slug":"isc","vendor_name":"ISC","product_slug":"bind9","product_name":"BIND9","version_start":"9.17.0","version_start_inclusive":true,"version_end":"unspecified","version_end_inclusive":false,"cpe23_uri":"cve5:isc:bind9:9.17.0:unspecified"},{"vendor_slug":"isc","vendor_name":"ISC","product_slug":"bind9","product_name":"BIND9","version_start":"unspecified","version_start_inclusive":true,"version_end":"9.17.4","version_end_inclusive":false,"cpe23_uri":"cve5:isc:bind9:unspecified:9.17.4"},{"vendor_slug":"isc","vendor_name":"ISC","product_slug":"bind9","product_name":"BIND9","version_start":"9.10.5-S1","version_start_inclusive":true,"version_end":"Supported Preview*","version_end_inclusive":false,"cpe23_uri":"cve5:isc:bind9:9.10.5-S1:Supported 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published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:04:32.026218Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:04:32.026218Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:04:32.026218Z","label":"CVSS score revised","source":"cvelistv5"}]}