CVE-2026-33612
Full vulnerability record from the local CVENow database.
Description
A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to cache poisoning.
Severity
HIGH
CVSS score
7.5
(v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-06-25 13:16:38.437000
Last modified
2026-10-25 23:10:00.167000
View original CVE JSON
{
"id": "CVE-2026-33612",
"sourceIdentifier": "[email protected]",
"published": "2026-06-25T13:16:38.437",
"lastModified": "2026-10-25T23:10:00.167",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to cache poisoning."
},
{
"lang": "es",
"value": "Un servidor autoritativo malicioso puede enviar una zona manipulada a través de la función ZoneToCache que conduce al envenenamiento de caché."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "PowerDNS",
"product": "Recursor",
"defaultStatus": "unaffected",
"collectionURL": "https://repo.powerdns.com/",
"packageName": "pdns-recursor",
"modules": [
"Zone to cache"
],
"programFiles": [
"rec-zonetocache.cc"
],
"repo": "https://github.com/PowerDNS/pdns",
"versions": [
{
"version": "5.2.0",
"lessThan": "5.2.11",
"versionType": "semver",
"status": "affected"
},
{
"version": "5.3.0",
"lessThan": "5.3.8",
"versionType": "semver",
"status": "affected"
},
{
"version": "5.4.0",
"lessThan": "5.4.3",
"versionType": "semver",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "CHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"availabilityImpact": "LOW"
},
"exploitabilityScore": 2.2,
"impactScore": 4.7
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-06-25T13:35:24.220350Z",
"id": "CVE-2026-33612",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-349"
}
]
}
],
"references": [
{
"url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-08.html",
"source": "[email protected]"
}
]
}