{"cve":{"cve_id":"CVE-2020-8625","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":0.64161,"epss_percentile":0.99122,"epss_as_of":"2026-06-23","description":"BIND servers are vulnerable if they are running an affected version and are configured to use GSS-TSIG features. In a configuration which uses BIND's default settings the vulnerable code path is not exposed, but a server can be rendered vulnerable by explicitly setting valid values for the tkey-gssapi-keytab or tkey-gssapi-credentialconfiguration options. Although the default configuration is not vulnerable, GSS-TSIG is frequently used in networks where BIND is integrated with Samba, as well as in mixed-server environments that combine BIND servers with Active Directory domain controllers. The most likely outcome of a successful exploitation of the vulnerability is a crash of the named process. However, remote code execution, while unproven, is theoretically possible. Affects: BIND 9.5.0 -> 9.11.27, 9.12.0 -> 9.16.11, and versions BIND 9.11.3-S1 -> 9.11.27-S1 and 9.16.8-S1 -> 9.16.11-S1 of BIND Supported Preview Edition. Also release versions 9.17.0 -> 9.17.1 of the BIND 9.17 development branch","published_at":"2021-02-17T22:40:16.090000Z","last_modified_at":null,"cvss_v3_score":8.1,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/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/v1/docs/cve-2020-8625","https://www.debian.org/security/2021/dsa-4857","http://www.openwall.com/lists/oss-security/2021/02/19/1","https://lists.debian.org/debian-lts-announce/2021/02/msg00029.html","http://www.openwall.com/lists/oss-security/2021/02/20/2","https://www.zerodayinitiative.com/advisories/ZDI-21-195/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QWCMBOSZOJIIET7BWTRYS3HLX5TSDKHX/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KYXAF7G45RXDVNUTWWCI2CVTHRZ67LST/","https://security.netapp.com/advisory/ntap-20210319-0001/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EBTPWRQWRQEJNWY4NHO4WLS4KLJ3ERHZ/","https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"],"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":["epss"],"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":"H","value_label":"High"},{"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":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"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":"Open Source Branches 9.5 though 9.11 9.5.0 through versions before 9.11.28","version_start_inclusive":true,"version_end":"Open Source Branches 9.5 though 9.11 9.5.0 through versions before 9.11.28","version_end_inclusive":true,"cpe23_uri":"cve5:isc:bind9:Open Source Branches 9.5 though 9.11 9.5.0 through versions before 9.11.28:Open Source Branches 9.5 though 9.11 9.5.0 through versions before 9.11.28"},{"vendor_slug":"isc","vendor_name":"ISC","product_slug":"bind9","product_name":"BIND9","version_start":"Open Source Branches 9.12 though 9.16 9.12.0 through versions before 9.16.12","version_start_inclusive":true,"version_end":"Open Source Branches 9.12 though 9.16 9.12.0 through versions before 9.16.12","version_end_inclusive":true,"cpe23_uri":"cve5:isc:bind9:Open Source Branches 9.12 though 9.16 9.12.0 through versions before 9.16.12:Open Source Branches 9.12 though 9.16 9.12.0 through versions before 9.16.12"},{"vendor_slug":"isc","vendor_name":"ISC","product_slug":"bind9","product_name":"BIND9","version_start":"Supported Preview Branch 9.11-S 9.11.3-S1 through versions before 9.11.28-S1","version_start_inclusive":true,"version_end":"Supported Preview Branch 9.11-S 9.11.3-S1 through versions before 9.11.28-S1","version_end_inclusive":true,"cpe23_uri":"cve5:isc:bind9:Supported Preview Branch 9.11-S 9.11.3-S1 through versions before 9.11.28-S1:Supported Preview Branch 9.11-S 9.11.3-S1 through versions before 9.11.28-S1"},{"vendor_slug":"isc","vendor_name":"ISC","product_slug":"bind9","product_name":"BIND9","version_start":"Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.12-S1","version_start_inclusive":true,"version_end":"Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.12-S1","version_end_inclusive":true,"cpe23_uri":"cve5:isc:bind9:Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.12-S1:Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.12-S1"},{"vendor_slug":"isc","vendor_name":"ISC","product_slug":"bind9","product_name":"BIND9","version_start":"Development Branch 9.17 9.17.0 through versions before 9.17.2","version_start_inclusive":true,"version_end":"Development Branch 9.17 9.17.0 through versions before 9.17.2","version_end_inclusive":true,"cpe23_uri":"cve5:isc:bind9:Development Branch 9.17 9.17.0 through versions before 9.17.2:Development Branch 9.17 9.17.0 through versions before 9.17.2"}],"exploit_refs":[],"news":[],"references":[{"url":"https://kb.isc.org/v1/docs/cve-2020-8625","source_type":"MISC","tags":[]},{"url":"https://www.debian.org/security/2021/dsa-4857","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2021/02/19/1","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.debian.org/debian-lts-announce/2021/02/msg00029.html","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"http://www.openwall.com/lists/oss-security/2021/02/20/2","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-21-195/","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QWCMBOSZOJIIET7BWTRYS3HLX5TSDKHX/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KYXAF7G45RXDVNUTWWCI2CVTHRZ67LST/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://security.netapp.com/advisory/ntap-20210319-0001/","source_type":"MISC","tags":[]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EBTPWRQWRQEJNWY4NHO4WLS4KLJ3ERHZ/","source_type":"MAILING_LIST","tags":["mailing-list"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2021-02-17T22:40:16.090000Z","label":"CVE 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"}]}