High
Security advisory
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
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-8625
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:13 UTC · Revision 1
Source evidence
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
osv:CVE-2020-8625
Complete source record
{
"id": "865a5d72b57958285c4094747b961a70849ce1588679e15d0b3dc271c83381a1",
"url": "https://osv.dev/vulnerability/CVE-2020-8625",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-8625",
"summary": "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",
"evidence": "osv:CVE-2020-8625",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2020-8625",
"aliases": [
"CVE-2020-8625"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/isc-projects/bind9",
"type": "GIT",
"events": [
{
"introduced": "4883ba14a28b3f1798f0a9840f4fd8accca8b69b"
},
{
"last_affected": "99ca3c536a90d95a2939d91205b2333da2a961a1"
},
{
"introduced": "71a40862c0be867999867cd99e21c2266a5e452b"
},
{
"last_affected": "9ff601bcca506f745e5627fc9630efdd80aaafac"
},
{
"introduced": "617639b7cc40ba9eb6fde2d98099726d50da812e"
},
{
"last_affected": "deb57872b630b9957662cf443e1e0001ab0e7b73"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.5.0"
},
{
"last_affected": "9.11.27"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.12.0"
},
{
"last_affected": "9.16.11"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:isc:bind:9.11.3:s1:*:*:supported_preview:*:*:*",
"range": [
{
"introduced": "9.11.3-s1"
},
{
"last_affected": "9.11.3-s1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*",
"range": [
{
"introduced": "9.11.6-s1"
},
{
"last_affected": "9.11.6-s1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:isc:bind:9.17.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.17.0"
},
{
"last_affected": "9.17.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:isc:bind:9.17.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.17.1"
},
{
"last_affected": "9.17.1"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"9.11.3-s1",
"9.11.6-s1",
"9.17.0",
"9.17.1",
"v9.11.27",
"v9.11.16",
"v9.11.14",
"v9.11.11",
"v9.11.9",
"v9.11.7",
"v9.11.6",
"v9.11.6rc1",
"v9.11.4",
"v9.11.4rc2",
"v9.11.3rc1",
"v9.11.3b1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8625.json"
}
},
{
"ranges": [
{
"repo": "https://gitlab.isc.org/isc-projects/bind9",
"type": "GIT",
"events": [
{
"introduced": "4883ba14a28b3f1798f0a9840f4fd8accca8b69b"
},
{
"last_affected": "99ca3c536a90d95a2939d91205b2333da2a961a1"
},
{
"introduced": "71a40862c0be867999867cd99e21c2266a5e452b"
},
{
"last_affected": "9ff601bcca506f745e5627fc9630efdd80aaafac"
},
{
"introduced": "617639b7cc40ba9eb6fde2d98099726d50da812e"
},
{
"last_affected": "deb57872b630b9957662cf443e1e0001ab0e7b73"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.5.0"
},
{
"last_affected": "9.11.27"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.12.0"
},
{
"last_affected": "9.16.11"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:isc:bind:9.11.3:s1:*:*:supported_preview:*:*:*",
"range": [
{
"introduced": "9.11.3-s1"
},
{
"last_affected": "9.11.3-s1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:isc:bind:9.11.6:s1:*:*:supported_preview:*:*:*",
"range": [
{
"introduced": "9.11.6-s1"
},
{
"last_affected": "9.11.6-s1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:isc:bind:9.17.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.17.0"
},
{
"last_affected": "9.17.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:isc:bind:9.17.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.17.1"
},
{
"last_affected": "9.17.1"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"9.11.3-s1",
"9.11.6-s1",
"9.17.0",
"9.17.1",
"v9.11.27",
"v9.11.16",
"v9.11.14",
"v9.11.11",
"v9.11.9",
"v9.11.7",
"v9.11.6",
"v9.11.6rc1",
"v9.11.4",
"v9.11.4rc2",
"v9.11.3rc1",
"v9.11.3b1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8625.json"
}
}
],
"modified": "2026-10-24T10:30:50.267900840Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EBTPWRQWRQEJNWY4NHO4WLS4KLJ3ERHZ/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KYXAF7G45RXDVNUTWWCI2CVTHRZ67LST/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QWCMBOSZOJIIET7BWTRYS3HLX5TSDKHX/",
"https://kb.isc.org/v1/docs/cve-2020-8625",
"https://lists.debian.org/debian-lts-announce/2021/02/msg00029.html",
"https://security.netapp.com/advisory/ntap-20210319-0001/",
"https://www.debian.org/security/2021/dsa-4857",
"https://www.zerodayinitiative.com/advisories/ZDI-21-195/",
"https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:*"
],
"vendor_product": "siemens:sinec_infrastructure_network_services",
"extracted_events": [
{
"range": [
{
"fixed": "1.0.1.1"
}
],
"source": "CPE_RANGE"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
},
{
"introduced": "10.0"
},
{
"last_affected": "10.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
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},
{
"last_affected": "32"
},
{
"introduced": "33"
},
{
"last_affected": "33"
},
{
"introduced": "34"
},
{
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}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:a:isc:bind:9.11.21:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.11.27:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.11.5:s3:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.11.5:s5:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.11.7:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.11.8:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.16.11:s1:*:*:supported_preview:*:*:*",
"cpe:2.3:a:isc:bind:9.16.8:s1:*:*:supported_preview:*:*:*"
],
"vendor_product": "isc:bind",
"extracted_events": [
{
"range": [
{
"introduced": "9.11.5-s3"
},
{
"last_affected": "9.11.5-s3"
},
{
"introduced": "9.11.5-s3"
},
{
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{
"introduced": "9.11.5-s5"
},
{
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},
{
"introduced": "9.11.5-s5"
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{
"last_affected": "9.11.5-s5"
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{
"introduced": "9.11.7-s1"
},
{
"last_affected": "9.11.7-s1"
},
{
"introduced": "9.11.7-s1"
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{
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},
{
"introduced": "9.11.8-s1"
},
{
"last_affected": "9.11.8-s1"
},
{
"introduced": "9.11.8-s1"
},
{
"last_affected": "9.11.8-s1"
},
{
"introduced": "9.11.21-s1"
},
{
"last_affected": "9.11.21-s1"
},
{
"introduced": "9.11.21-s1"
},
{
"last_affected": "9.11.21-s1"
},
{
"introduced": "9.11.27-s1"
},
{
"last_affected": "9.11.27-s1"
},
{
"introduced": "9.11.27-s1"
},
{
"last_affected": "9.11.27-s1"
},
{
"introduced": "9.16.8-s1"
},
{
"last_affected": "9.16.8-s1"
},
{
"introduced": "9.16.8-s1"
},
{
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},
{
"introduced": "9.16.11-s1"
},
{
"last_affected": "9.16.11-s1"
},
{
"introduced": "9.16.11-s1"
},
{
"last_affected": "9.16.11-s1"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2020-8625",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 437196,
"published_at": "2021-02-17T23:15:13.53+00:00"
}