Search criteria
734 vulnerabilities found for BIND by ISC
CERTFR-2026-AVI-0626
Vulnerability from certfr_avis - Published: 2026-05-21 - Updated: 2026-05-21
De multiples vulnérabilités ont été découvertes dans ISC BIND. Elles permettent à un attaquant de provoquer un déni de service à distance et un problème de sécurité non spécifié par l'éditeur.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| ISC | BIND | Bind versions 9.20.x antérieures à 9.20.23 | ||
| ISC | BIND | Bind versions 9.x antérieures à 9.18.49 | ||
| ISC | BIND | BIND Supported Preview Edition versions antérieures à 9.18.49-S1 | ||
| ISC | BIND | Bind versions 9.21.x antérieures à 9.21.22 | ||
| ISC | BIND | BIND Supported Preview Edition versions 9.20.x antérieures à 9.20.23-S1 |
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Bind versions 9.20.x ant\u00e9rieures \u00e0 9.20.23",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "Bind versions 9.x ant\u00e9rieures \u00e0 9.18.49",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "BIND Supported Preview Edition versions ant\u00e9rieures \u00e0 9.18.49-S1",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "Bind versions 9.21.x ant\u00e9rieures \u00e0 9.21.22",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "BIND Supported Preview Edition versions 9.20.x ant\u00e9rieures \u00e0 9.20.23-S1",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-5947",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-5947"
},
{
"name": "CVE-2026-5950",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-5950"
},
{
"name": "CVE-2026-5946",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-5946"
}
],
"initial_release_date": "2026-05-21T00:00:00",
"last_revision_date": "2026-05-21T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0626",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-05-21T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans ISC BIND. Elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance et un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans ISC BIND",
"vendor_advisories": [
{
"published_at": "2026-05-20",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2026-5950",
"url": "https://kb.isc.org/v1/docs/cve-2026-5950"
},
{
"published_at": "2026-05-20",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2026-5947",
"url": "https://kb.isc.org/v1/docs/cve-2026-5947"
},
{
"published_at": "2026-05-20",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2026-5946",
"url": "https://kb.isc.org/v1/docs/cve-2026-5946"
}
]
}
CERTFR-2026-AVI-0618
Vulnerability from certfr_avis - Published: 2026-05-20 - Updated: 2026-05-20
De multiples vulnérabilités ont été découvertes dans ISC BIND. Elles permettent à un attaquant de provoquer un déni de service à distance et un problème de sécurité non spécifié par l'éditeur.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| ISC | BIND | Bind versions 9.20.x antérieures à 9.20.23 | ||
| ISC | BIND | Bind versions 9.x antérieures à 9.18.49 | ||
| ISC | BIND | BIND Supported Preview Edition versions antérieures à 9.18.49-S1 | ||
| ISC | BIND | Bind versions 9.21.x antérieures à 9.21.22 | ||
| ISC | BIND | BIND Supported Preview Edition versions 9.20.x antérieures à 9.20.23-S1 |
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Bind versions 9.20.x ant\u00e9rieures \u00e0 9.20.23",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "Bind versions 9.x ant\u00e9rieures \u00e0 9.18.49",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "BIND Supported Preview Edition versions ant\u00e9rieures \u00e0 9.18.49-S1",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "Bind versions 9.21.x ant\u00e9rieures \u00e0 9.21.22",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "BIND Supported Preview Edition versions 9.20.x ant\u00e9rieures \u00e0 9.20.23-S1",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-3593",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-3593"
},
{
"name": "CVE-2026-3592",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-3592"
},
{
"name": "CVE-2026-3039",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-3039"
}
],
"initial_release_date": "2026-05-20T00:00:00",
"last_revision_date": "2026-05-20T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0618",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-05-20T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans ISC BIND. Elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance et un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans ISC BIND",
"vendor_advisories": [
{
"published_at": "2026-05-20",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2026-3592",
"url": "https://kb.isc.org/v1/docs/cve-2026-3592"
},
{
"published_at": "2026-05-20",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2026-3593",
"url": "https://kb.isc.org/v1/docs/cve-2026-3593"
},
{
"published_at": "2026-05-20",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2026-3039",
"url": "https://kb.isc.org/v1/docs/cve-2026-3039"
}
]
}
CERTFR-2026-AVI-0360
Vulnerability from certfr_avis - Published: 2026-03-26 - Updated: 2026-03-26
De multiples vulnérabilités ont été découvertes dans ISC BIND. Elles permettent à un attaquant de provoquer un déni de service à distance, une atteinte à la confidentialité des données et un contournement de la politique de sécurité.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| ISC | BIND | BIND versions 9.20.x antérieures à 9.20.21 | ||
| ISC | BIND Supported Preview Edition | BIND Supported Preview Edition versions antérieures à 9.18.47-S1 | ||
| ISC | BIND | BIND versions 9.21.x antérieures à 9.21.20 | ||
| ISC | BIND Supported Preview Edition | BIND Supported Preview Edition versions 9.20.x antérieures à 9.20.21-S1 | ||
| ISC | BIND | BIND versions antérieures à 9.18.47 |
References
| Title | Publication Time | Tags | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "BIND versions 9.20.x ant\u00e9rieures \u00e0 9.20.21",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "BIND Supported Preview Edition versions ant\u00e9rieures \u00e0 9.18.47-S1",
"product": {
"name": "BIND Supported Preview Edition",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "BIND versions 9.21.x ant\u00e9rieures \u00e0 9.21.20",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "BIND Supported Preview Edition versions 9.20.x ant\u00e9rieures \u00e0 9.20.21-S1",
"product": {
"name": "BIND Supported Preview Edition",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "BIND versions ant\u00e9rieures \u00e0 9.18.47",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-3119",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-3119"
},
{
"name": "CVE-2026-3104",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-3104"
},
{
"name": "CVE-2026-1519",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-1519"
},
{
"name": "CVE-2026-3591",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-3591"
}
],
"initial_release_date": "2026-03-26T00:00:00",
"last_revision_date": "2026-03-26T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0360",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-03-26T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans ISC BIND. Elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et un contournement de la politique de s\u00e9curit\u00e9.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans ISC BIND",
"vendor_advisories": [
{
"published_at": "2026-03-25",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2026-3119",
"url": "https://kb.isc.org/v1/docs/cve-2026-3119"
},
{
"published_at": "2026-03-25",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2026-1519",
"url": "https://kb.isc.org/v1/docs/cve-2026-1519"
},
{
"published_at": "2026-03-25",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2026-3104",
"url": "https://kb.isc.org/v1/docs/cve-2026-3104"
},
{
"published_at": "2026-03-25",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2026-3591",
"url": "https://kb.isc.org/v1/docs/cve-2026-3591"
}
]
}
CERTFR-2025-AVI-0913
Vulnerability from certfr_avis - Published: 2025-10-23 - Updated: 2025-10-23
De multiples vulnérabilités ont été découvertes dans ISC BIND. Elles permettent à un attaquant de provoquer un déni de service à distance et un contournement de la politique de sécurité.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| ISC | BIND | BIND versions 9.20.x antérieures à 9.20.15 | ||
| ISC | BIND Supported Preview Edition | BIND Supported Preview Edition versions antérieures à 9.18.41-S1 | ||
| ISC | BIND Supported Preview Edition | BIND Supported Preview Edition versions 9.20.x antérieures à 9.20.15-S1 | ||
| ISC | BIND | BIND versions 9.21.x antérieures à 9.21.14 | ||
| ISC | BIND | BIND versions antérieures à 9.18.41 |
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "BIND versions 9.20.x ant\u00e9rieures \u00e0 9.20.15",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "BIND Supported Preview Edition versions ant\u00e9rieures \u00e0 9.18.41-S1",
"product": {
"name": "BIND Supported Preview Edition",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "BIND Supported Preview Edition versions 9.20.x ant\u00e9rieures \u00e0 9.20.15-S1",
"product": {
"name": "BIND Supported Preview Edition",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "BIND versions 9.21.x ant\u00e9rieures \u00e0 9.21.14",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "BIND versions ant\u00e9rieures \u00e0 9.18.41",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2025-40780",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40780"
},
{
"name": "CVE-2025-40778",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40778"
},
{
"name": "CVE-2025-8677",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-8677"
}
],
"initial_release_date": "2025-10-23T00:00:00",
"last_revision_date": "2025-10-23T00:00:00",
"links": [],
"reference": "CERTFR-2025-AVI-0913",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2025-10-23T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans ISC BIND. Elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance et un contournement de la politique de s\u00e9curit\u00e9.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans ISC BIND",
"vendor_advisories": [
{
"published_at": "2025-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2025-40778",
"url": "https://kb.isc.org/v1/docs/cve-2025-40778"
},
{
"published_at": "2025-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2025-8677",
"url": "https://kb.isc.org/v1/docs/cve-2025-8677"
},
{
"published_at": "2025-10-22",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2025-40780",
"url": "https://kb.isc.org/v1/docs/cve-2025-40780"
}
]
}
CERTFR-2025-AVI-0596
Vulnerability from certfr_avis - Published: - Updated:
De multiples vulnérabilités ont été découvertes dans ISC BIND. Elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données et un contournement de la politique de sécurité.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| ISC | BIND | Bind versions 9.20.x antérieures à 9.20.11 | ||
| ISC | BIND Supported Preview Edition | BIND Supported Preview Edition versions 9.20.x antérieures à 9.20.11-S1 | ||
| ISC | BIND | Bind versions 9.21.x antérieures à 9.21.10 | ||
| ISC | BIND Supported Preview Edition | BIND Supported Preview Edition versions antérieures à 9.18.38-S1 |
References
| Title | Publication Time | Tags | ||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Bind versions 9.20.x ant\u00e9rieures \u00e0 9.20.11",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "BIND Supported Preview Edition versions 9.20.x ant\u00e9rieures \u00e0 9.20.11-S1",
"product": {
"name": "BIND Supported Preview Edition",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "Bind versions 9.21.x ant\u00e9rieures \u00e0 9.21.10",
"product": {
"name": "BIND",
"vendor": {
"name": "ISC",
"scada": false
}
}
},
{
"description": "BIND Supported Preview Edition versions ant\u00e9rieures \u00e0 9.18.38-S1",
"product": {
"name": "BIND Supported Preview Edition",
"vendor": {
"name": "ISC",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2025-40777",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40777"
},
{
"name": "CVE-2025-40776",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40776"
}
],
"links": [],
"reference": "CERTFR-2025-AVI-0596",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2025-07-17T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans ISC BIND. Elles permettent \u00e0 un attaquant de provoquer une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et un contournement de la politique de s\u00e9curit\u00e9.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans ISC BIND",
"vendor_advisories": [
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"published_at": "2025-07-16",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2025-40776",
"url": "https://kb.isc.org/v1/docs/cve-2025-40776"
},
{
"published_at": "2025-07-16",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2025-40777",
"url": "https://kb.isc.org/v1/docs/cve-2025-40777"
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CERTFR-2025-AVI-0436
Vulnerability from certfr_avis - Published: - Updated:
Une vulnérabilité a été découverte dans ISC BIND. Elle permet à un attaquant de provoquer un déni de service à distance.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
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"description": "Bind versions 9.21.x ant\u00e9rieures \u00e0 9.21.8",
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"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
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}
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"description": "Version initiale",
"revision_date": "2025-05-22T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
}
],
"summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans ISC BIND. Elle permet \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance.",
"title": "Vuln\u00e9rabilit\u00e9 dans ISC BIND",
"vendor_advisories": [
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"published_at": "2025-05-21",
"title": "Bulletin de s\u00e9curit\u00e9 ISC BIND cve-2025-40775",
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CVE-2026-5950 (GCVE-0-2026-5950)
Vulnerability from nvd – Published: 2026-05-20 13:10 – Updated: 2026-05-20 13:38
VLAI
Title
Unbounded resend loop in BIND 9 resolver
Summary
An unbounded resend loop vulnerability exists in the BIND 9 resolver state machine during bad-server handling, enabling a remote unauthenticated attacker to cause severe resource exhaustion by sending queries that trigger specific retry conditions.
This issue affects BIND 9 versions 9.18.36 through 9.18.48, 9.20.8 through 9.20.22, 9.21.7 through 9.21.21, 9.18.36-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
Severity
5.3 (Medium)
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-5950 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.18.49 | patch |
| https://downloads.isc.org/isc/bind9/9.20.23 | patch |
| https://downloads.isc.org/isc/bind9/9.21.22 | patch |
Impacted products
Date Public
2026-05-20 00:00
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CVE-2026-5947 (GCVE-0-2026-5947)
Vulnerability from nvd – Published: 2026-05-20 13:10 – Updated: 2026-05-20 13:39
VLAI
Title
SIG(0) validation during query flood may lead to undefined behavior
Summary
Undefined behavior may result due to a race condition leading to a use-after-free violation. If BIND receives an incoming DNS message signed with SIG(0), it begins work to validate that signature. If, during that validation, the "recursive-clients" limit is reached (as would occur during a query flood), and that same DNS message is discarded per the limit, there is a brief window of time while the SIG(0) validation may attempt to read the now-discarded DNS message.
This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1.
BIND 9 versions 9.18.28 through 9.18.49 and 9.18.28-S1 through 9.18.49-S1 are NOT affected.
Severity
7.5 (High)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-5947 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.23 | patch |
| https://downloads.isc.org/isc/bind9/9.21.22 | patch |
Impacted products
Date Public
2026-05-20 00:00
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CVE-2026-5946 (GCVE-0-2026-5946)
Vulnerability from nvd – Published: 2026-05-20 13:10 – Updated: 2026-05-20 13:40
VLAI
Title
Invalid handling of CLASS != IN
Summary
Multiple flaws have been identified in `named` related to the handling of DNS messages whose CLASS is not Internet (`IN`) — for example, `CHAOS` or `HESIOD`, or DNS messages that specify meta-classes (`ANY` or `NONE`) in the question section. Specially crafted requests reaching the affected code paths — recursion, dynamic updates (`UPDATE`), zone change notifications (`NOTIFY`), or processing of `IN`-specific record types in non-`IN` data — can cause assertion failures in `named`.
This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
Severity
7.5 (High)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-5946 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.18.49 | patch |
| https://downloads.isc.org/isc/bind9/9.20.23 | patch |
| https://downloads.isc.org/isc/bind9/9.21.22 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ISC | BIND 9 |
Affected:
9.11.0 , ≤ 9.16.50
(custom)
Affected: 9.18.0 , ≤ 9.18.48 (custom) Affected: 9.20.0 , ≤ 9.20.22 (custom) Affected: 9.21.0 , ≤ 9.21.21 (custom) Affected: 9.11.3-S1 , ≤ 9.16.50-S1 (custom) Affected: 9.18.11-S1 , ≤ 9.18.48-S1 (custom) Affected: 9.20.9-S1 , ≤ 9.20.22-S1 (custom) |
Date Public
2026-05-20 00:00
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CVE-2026-3593 (GCVE-0-2026-3593)
Vulnerability from nvd – Published: 2026-05-20 13:09 – Updated: 2026-05-20 13:40
VLAI
Title
Heap use-after-free vulnerability in BIND 9 DNS-over-HTTPS implementation
Summary
A use-after-free vulnerability exists within the DNS-over-HTTPS implementation.
This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1.
BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected.
Severity
7.4 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-3593 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.23 | patch |
| https://downloads.isc.org/isc/bind9/9.21.22 | patch |
Impacted products
Date Public
2026-05-20 00:00
Credits
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CVE-2026-3592 (GCVE-0-2026-3592)
Vulnerability from nvd – Published: 2026-05-20 13:09 – Updated: 2026-05-20 13:42
VLAI
Title
Amplification vulnerabilities via self-pointed glue records
Summary
BIND resolvers are vulnerable to an amplified resource consumption/exhaustion attack. If a victim resolver makes a query to a specially crafted zone, the resolver will consume disproportionate resources.
This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
Severity
5.3 (Medium)
CWE
- CWE-408 - Incorrect Behavior Order - Early Amplification
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-3592 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.18.49 | patch |
| https://downloads.isc.org/isc/bind9/9.20.23 | patch |
| https://downloads.isc.org/isc/bind9/9.21.22 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ISC | BIND 9 |
Affected:
9.11.0 , ≤ 9.16.50
(custom)
Affected: 9.18.0 , ≤ 9.18.48 (custom) Affected: 9.20.0 , ≤ 9.20.22 (custom) Affected: 9.21.0 , ≤ 9.21.21 (custom) Affected: 9.11.3-S1 , ≤ 9.16.50-S1 (custom) Affected: 9.18.11-S1 , ≤ 9.18.48-S1 (custom) Affected: 9.20.9-S1 , ≤ 9.20.22-S1 (custom) |
Date Public
2026-05-20 00:00
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CVE-2026-3039 (GCVE-0-2026-3039)
Vulnerability from nvd – Published: 2026-05-20 13:09 – Updated: 2026-05-20 13:43
VLAI
Title
BIND 9 server memory exhaustion during GSS-API TKEY negotiation
Summary
BIND servers that are configured to use TKEY-based authentication via GSS-API tokens are vulnerable to excessive memory consumption when receiving and processing maliciously-constructed packets. Typically these servers will be found in Active Directory integrated DNS deployments and/or Kerberos-secured DNS environments.
This issue affects BIND 9 versions 9.0.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.9.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
Severity
7.5 (High)
CWE
- CWE-771 - Missing Reference to Active Allocated Resource
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-3039 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.18.49 | patch |
| https://downloads.isc.org/isc/bind9/9.20.23 | patch |
| https://downloads.isc.org/isc/bind9/9.21.22 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ISC | BIND 9 |
Affected:
9.0.0 , ≤ 9.16.50
(custom)
Affected: 9.18.0 , ≤ 9.18.48 (custom) Affected: 9.20.0 , ≤ 9.20.22 (custom) Affected: 9.21.0 , ≤ 9.21.21 (custom) Affected: 9.9.3-S1 , ≤ 9.16.50-S1 (custom) Affected: 9.18.11-S1 , ≤ 9.18.48-S1 (custom) Affected: 9.20.9-S1 , ≤ 9.20.22-S1 (custom) |
Date Public
2026-05-20 00:00
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CVE-2026-3591 (GCVE-0-2026-3591)
Vulnerability from nvd – Published: 2026-03-25 13:34 – Updated: 2026-03-25 14:13
VLAI
Title
A stack use-after-return flaw in SIG(0) handling code may enable ACL bypass
Summary
A use-after-return vulnerability exists in the `named` server when handling DNS queries signed with SIG(0). Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly (mis)match an IP address. In a default-allow ACL (denying only specific IP addresses), this may lead to unauthorized access. Default-deny ACLs should fail-secure.
This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1.
BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
Severity
5.4 (Medium)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-3591 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.21 | patch |
| https://downloads.isc.org/isc/bind9/9.21.20 | patch |
Impacted products
Date Public
2026-03-25 00:00
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CVE-2026-3119 (GCVE-0-2026-3119)
Vulnerability from nvd – Published: 2026-03-25 13:31 – Updated: 2026-03-25 14:13
VLAI
Title
Authenticated query containing a TKEY record may cause named to terminate unexpectedly
Summary
Under certain conditions, `named` may crash when processing a correctly signed query containing a TKEY record. The affected code can only be reached if an incoming request has a valid transaction signature (TSIG) from a key declared in the `named` configuration.
This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1.
BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
Severity
6.5 (Medium)
CWE
- CWE-617 - Reachable Assertion
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-3119 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.21 | patch |
| https://downloads.isc.org/isc/bind9/9.21.20 | patch |
Impacted products
Date Public
2026-03-25 00:00
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CVE-2026-3104 (GCVE-0-2026-3104)
Vulnerability from nvd – Published: 2026-03-25 13:29 – Updated: 2026-03-25 14:56
VLAI
Title
Memory leak in code preparing DNSSEC proofs of non-existence
Summary
A specially crafted domain can be used to cause a memory leak in a BIND resolver simply by querying this domain.
This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1.
BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
Severity
7.5 (High)
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-3104 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.21 | patch |
| https://downloads.isc.org/isc/bind9/9.21.20 | patch |
Impacted products
Date Public
2026-03-25 00:00
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CVE-2026-1519 (GCVE-0-2026-1519)
Vulnerability from nvd – Published: 2026-03-25 13:25 – Updated: 2026-04-13 09:35
VLAI
Title
Excessive NSEC3 iterations cause high CPU load during insecure delegation validation
Summary
If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive queries (see: https://kb.isc.org/docs/why-does-my-authoritative-server-make-recursive-queries).
This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.46, 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.46-S1, and 9.20.9-S1 through 9.20.20-S1.
Severity
7.5 (High)
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-1519 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.18.47 | patch |
| https://downloads.isc.org/isc/bind9/9.20.21 | patch |
| https://downloads.isc.org/isc/bind9/9.21.20 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ISC | BIND 9 |
Affected:
9.11.0 , ≤ 9.16.50
(custom)
Affected: 9.18.0 , ≤ 9.18.46 (custom) Affected: 9.20.0 , ≤ 9.20.20 (custom) Affected: 9.21.0 , ≤ 9.21.19 (custom) Affected: 9.11.3-S1 , ≤ 9.16.50-S1 (custom) Affected: 9.18.11-S1 , ≤ 9.18.46-S1 (custom) Affected: 9.20.9-S1 , ≤ 9.20.20-S1 (custom) |
Date Public
2026-03-25 00:00
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CVE-2026-5950 (GCVE-0-2026-5950)
Vulnerability from cvelistv5 – Published: 2026-05-20 13:10 – Updated: 2026-05-20 13:38
VLAI
Title
Unbounded resend loop in BIND 9 resolver
Summary
An unbounded resend loop vulnerability exists in the BIND 9 resolver state machine during bad-server handling, enabling a remote unauthenticated attacker to cause severe resource exhaustion by sending queries that trigger specific retry conditions.
This issue affects BIND 9 versions 9.18.36 through 9.18.48, 9.20.8 through 9.20.22, 9.21.7 through 9.21.21, 9.18.36-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
Severity
5.3 (Medium)
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-5950 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.18.49 | patch |
| https://downloads.isc.org/isc/bind9/9.20.23 | patch |
| https://downloads.isc.org/isc/bind9/9.21.22 | patch |
Impacted products
Date Public
2026-05-20 00:00
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CVE-2026-5947 (GCVE-0-2026-5947)
Vulnerability from cvelistv5 – Published: 2026-05-20 13:10 – Updated: 2026-05-20 13:39
VLAI
Title
SIG(0) validation during query flood may lead to undefined behavior
Summary
Undefined behavior may result due to a race condition leading to a use-after-free violation. If BIND receives an incoming DNS message signed with SIG(0), it begins work to validate that signature. If, during that validation, the "recursive-clients" limit is reached (as would occur during a query flood), and that same DNS message is discarded per the limit, there is a brief window of time while the SIG(0) validation may attempt to read the now-discarded DNS message.
This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1.
BIND 9 versions 9.18.28 through 9.18.49 and 9.18.28-S1 through 9.18.49-S1 are NOT affected.
Severity
7.5 (High)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-5947 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.23 | patch |
| https://downloads.isc.org/isc/bind9/9.21.22 | patch |
Impacted products
Date Public
2026-05-20 00:00
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CVE-2026-5946 (GCVE-0-2026-5946)
Vulnerability from cvelistv5 – Published: 2026-05-20 13:10 – Updated: 2026-05-20 13:40
VLAI
Title
Invalid handling of CLASS != IN
Summary
Multiple flaws have been identified in `named` related to the handling of DNS messages whose CLASS is not Internet (`IN`) — for example, `CHAOS` or `HESIOD`, or DNS messages that specify meta-classes (`ANY` or `NONE`) in the question section. Specially crafted requests reaching the affected code paths — recursion, dynamic updates (`UPDATE`), zone change notifications (`NOTIFY`), or processing of `IN`-specific record types in non-`IN` data — can cause assertion failures in `named`.
This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
Severity
7.5 (High)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-5946 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.18.49 | patch |
| https://downloads.isc.org/isc/bind9/9.20.23 | patch |
| https://downloads.isc.org/isc/bind9/9.21.22 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ISC | BIND 9 |
Affected:
9.11.0 , ≤ 9.16.50
(custom)
Affected: 9.18.0 , ≤ 9.18.48 (custom) Affected: 9.20.0 , ≤ 9.20.22 (custom) Affected: 9.21.0 , ≤ 9.21.21 (custom) Affected: 9.11.3-S1 , ≤ 9.16.50-S1 (custom) Affected: 9.18.11-S1 , ≤ 9.18.48-S1 (custom) Affected: 9.20.9-S1 , ≤ 9.20.22-S1 (custom) |
Date Public
2026-05-20 00:00
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CVE-2026-3593 (GCVE-0-2026-3593)
Vulnerability from cvelistv5 – Published: 2026-05-20 13:09 – Updated: 2026-05-20 13:40
VLAI
Title
Heap use-after-free vulnerability in BIND 9 DNS-over-HTTPS implementation
Summary
A use-after-free vulnerability exists within the DNS-over-HTTPS implementation.
This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1.
BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected.
Severity
7.4 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-3593 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.23 | patch |
| https://downloads.isc.org/isc/bind9/9.21.22 | patch |
Impacted products
Date Public
2026-05-20 00:00
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CVE-2026-3592 (GCVE-0-2026-3592)
Vulnerability from cvelistv5 – Published: 2026-05-20 13:09 – Updated: 2026-05-20 13:42
VLAI
Title
Amplification vulnerabilities via self-pointed glue records
Summary
BIND resolvers are vulnerable to an amplified resource consumption/exhaustion attack. If a victim resolver makes a query to a specially crafted zone, the resolver will consume disproportionate resources.
This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.
Severity
5.3 (Medium)
CWE
- CWE-408 - Incorrect Behavior Order - Early Amplification
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-3592 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.18.49 | patch |
| https://downloads.isc.org/isc/bind9/9.20.23 | patch |
| https://downloads.isc.org/isc/bind9/9.21.22 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ISC | BIND 9 |
Affected:
9.11.0 , ≤ 9.16.50
(custom)
Affected: 9.18.0 , ≤ 9.18.48 (custom) Affected: 9.20.0 , ≤ 9.20.22 (custom) Affected: 9.21.0 , ≤ 9.21.21 (custom) Affected: 9.11.3-S1 , ≤ 9.16.50-S1 (custom) Affected: 9.18.11-S1 , ≤ 9.18.48-S1 (custom) Affected: 9.20.9-S1 , ≤ 9.20.22-S1 (custom) |
Date Public
2026-05-20 00:00
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CVE-2026-3039 (GCVE-0-2026-3039)
Vulnerability from cvelistv5 – Published: 2026-05-20 13:09 – Updated: 2026-05-20 13:43
VLAI
Title
BIND 9 server memory exhaustion during GSS-API TKEY negotiation
Summary
BIND servers that are configured to use TKEY-based authentication via GSS-API tokens are vulnerable to excessive memory consumption when receiving and processing maliciously-constructed packets. Typically these servers will be found in Active Directory integrated DNS deployments and/or Kerberos-secured DNS environments.
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Severity
7.5 (High)
CWE
- CWE-771 - Missing Reference to Active Allocated Resource
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-3039 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.18.49 | patch |
| https://downloads.isc.org/isc/bind9/9.20.23 | patch |
| https://downloads.isc.org/isc/bind9/9.21.22 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ISC | BIND 9 |
Affected:
9.0.0 , ≤ 9.16.50
(custom)
Affected: 9.18.0 , ≤ 9.18.48 (custom) Affected: 9.20.0 , ≤ 9.20.22 (custom) Affected: 9.21.0 , ≤ 9.21.21 (custom) Affected: 9.9.3-S1 , ≤ 9.16.50-S1 (custom) Affected: 9.18.11-S1 , ≤ 9.18.48-S1 (custom) Affected: 9.20.9-S1 , ≤ 9.20.22-S1 (custom) |
Date Public
2026-05-20 00:00
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CVE-2026-3591 (GCVE-0-2026-3591)
Vulnerability from cvelistv5 – Published: 2026-03-25 13:34 – Updated: 2026-03-25 14:13
VLAI
Title
A stack use-after-return flaw in SIG(0) handling code may enable ACL bypass
Summary
A use-after-return vulnerability exists in the `named` server when handling DNS queries signed with SIG(0). Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly (mis)match an IP address. In a default-allow ACL (denying only specific IP addresses), this may lead to unauthorized access. Default-deny ACLs should fail-secure.
This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1.
BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
Severity
5.4 (Medium)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-3591 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.21 | patch |
| https://downloads.isc.org/isc/bind9/9.21.20 | patch |
Impacted products
Date Public
2026-03-25 00:00
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CVE-2026-3119 (GCVE-0-2026-3119)
Vulnerability from cvelistv5 – Published: 2026-03-25 13:31 – Updated: 2026-03-25 14:13
VLAI
Title
Authenticated query containing a TKEY record may cause named to terminate unexpectedly
Summary
Under certain conditions, `named` may crash when processing a correctly signed query containing a TKEY record. The affected code can only be reached if an incoming request has a valid transaction signature (TSIG) from a key declared in the `named` configuration.
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BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
Severity
6.5 (Medium)
CWE
- CWE-617 - Reachable Assertion
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-3119 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.21 | patch |
| https://downloads.isc.org/isc/bind9/9.21.20 | patch |
Impacted products
Date Public
2026-03-25 00:00
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CVE-2026-3104 (GCVE-0-2026-3104)
Vulnerability from cvelistv5 – Published: 2026-03-25 13:29 – Updated: 2026-03-25 14:56
VLAI
Title
Memory leak in code preparing DNSSEC proofs of non-existence
Summary
A specially crafted domain can be used to cause a memory leak in a BIND resolver simply by querying this domain.
This issue affects BIND 9 versions 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, and 9.20.9-S1 through 9.20.20-S1.
BIND 9 versions 9.18.0 through 9.18.46 and 9.18.11-S1 through 9.18.46-S1 are NOT affected.
Severity
7.5 (High)
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-3104 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.20.21 | patch |
| https://downloads.isc.org/isc/bind9/9.21.20 | patch |
Impacted products
Date Public
2026-03-25 00:00
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CVE-2026-1519 (GCVE-0-2026-1519)
Vulnerability from cvelistv5 – Published: 2026-03-25 13:25 – Updated: 2026-04-13 09:35
VLAI
Title
Excessive NSEC3 iterations cause high CPU load during insecure delegation validation
Summary
If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive queries (see: https://kb.isc.org/docs/why-does-my-authoritative-server-make-recursive-queries).
This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.46, 9.20.0 through 9.20.20, 9.21.0 through 9.21.19, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.46-S1, and 9.20.9-S1 through 9.20.20-S1.
Severity
7.5 (High)
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://kb.isc.org/docs/cve-2026-1519 | vendor-advisory |
| https://downloads.isc.org/isc/bind9/9.18.47 | patch |
| https://downloads.isc.org/isc/bind9/9.20.21 | patch |
| https://downloads.isc.org/isc/bind9/9.21.20 | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ISC | BIND 9 |
Affected:
9.11.0 , ≤ 9.16.50
(custom)
Affected: 9.18.0 , ≤ 9.18.46 (custom) Affected: 9.20.0 , ≤ 9.20.20 (custom) Affected: 9.21.0 , ≤ 9.21.19 (custom) Affected: 9.11.3-S1 , ≤ 9.16.50-S1 (custom) Affected: 9.18.11-S1 , ≤ 9.18.46-S1 (custom) Affected: 9.20.9-S1 , ≤ 9.20.20-S1 (custom) |
Date Public
2026-03-25 00:00
Credits
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