CVE-2026-85321
Full vulnerability record from the local CVENow database.
Description
Allocation of resources without limits or throttling in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
Severity
HIGH
CVSS score
7.5
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-10-13 19:20:53.400000
Last modified
2026-10-29 18:07:46.357000
View original CVE JSON
{
"id": "CVE-2026-85321",
"sourceIdentifier": "[email protected]",
"published": "2026-10-13T19:20:53.400",
"lastModified": "2026-10-29T18:07:46.357",
"vulnStatus": "Analyzed",
"cveTags": [],
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{
"lang": "en",
"value": "Allocation of resources without limits or throttling in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
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"product": "Windows Server 2012 R2",
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],
"metrics": {
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{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-10-13T20:15:28.381650Z",
"id": "CVE-2026-85321",
"options": [
{
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},
{
"automatable": "yes"
},
{
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}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-770"
}
]
}
],
"configurations": [
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"references": [
{
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85321",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
}
]
}