CVE-2026-33608
Estado: AnalizadaCrítica (9.8)—
An attacker can send a notify request that causes a new secondary domain to be added to the bind backend, but causes said backend to update its configuration to an invalid one, leading to the backend no longer able to run on the next restart, requiring manual operation to fix it.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 9.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.59%
- Percentil entre todas las CVEs puntuadas: 47
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access60 % - Impacto principal
T1059Command and Scripting Interpreterexecution55 %
Inferido por reglas deterministas a partir del vector CVSS y la CWE. Solo orientativo.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-94
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-33608",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-33608",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-04-22T14:28:03.004705Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security@open-xchange.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.4,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 5.2,
"exploitabilityScore": 2.2
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 9.8,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "security@open-xchange.com",
"affectedData": [
{
"repo": "https://github.com/PowerDNS/pdns",
"vendor": "PowerDNS",
"modules": [
"Bind backend"
],
"product": "Authoritative",
"versions": [
{
"status": "affected",
"version": "5.0.0",
"lessThan": "5.0.4",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.9.0",
"lessThan": "4.9.14",
"versionType": "semver"
}
],
"packageName": "pdns",
"programFiles": [
"bindbackend2.cc"
],
"collectionURL": "https://repo.powerdns.com/",
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-04-22T14:16:54.650",
"references": [
{
"url": "https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-05.html",
"tags": [
"Broken Link",
"Vendor Advisory"
],
"source": "security@open-xchange.com"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"description": [
{
"lang": "en",
"value": "CWE-94"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An attacker can send a notify request that causes a new secondary domain to be added to the bind backend, but causes said backend to update its configuration to an invalid one, leading to the backend no longer able to run on the next restart, requiring manual operation to fix it."
}
],
"lastModified": "2026-06-17T10:37:46.657",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "08464BC2-733F-4260-878D-DE05919A7A7D",
"versionEndExcluding": "4.9.14",
"versionStartIncluding": "4.9.0"
},
{
"criteria": "cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A26C526E-15DC-41BE-9B66-FC6A63679562",
"versionEndExcluding": "5.0.4",
"versionStartIncluding": "5.0.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security@open-xchange.com"
}