CVE-2026-27928
Full vulnerability record from the local CVENow database.
Description
Improper input validation in Windows Hello allows an unauthorized attacker to bypass a security feature over a network.
Severity
HIGH
CVSS score
8.7
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-14 18:17:04.170000
Last modified
2026-10-26 21:10:00.170000
View original CVE JSON
{
"id": "CVE-2026-27928",
"sourceIdentifier": "[email protected]",
"published": "2026-04-14T18:17:04.170",
"lastModified": "2026-10-26T21:10:00.170",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Improper input validation in Windows Hello allows an unauthorized attacker to bypass a security feature over a network."
},
{
"lang": "es",
"value": "Validación de entrada indebida en Windows Hello permite a un atacante no autorizado eludir una característica de seguridad a través de una red."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Microsoft",
"product": "Windows Server 2016",
"platforms": [
"x64-based Systems"
],
"versions": [
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"version": "10.0.14393.0",
"lessThan": "10.0.14393.9060",
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"status": "affected"
}
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},
{
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"platforms": [
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],
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"version": "10.0.14393.0",
"lessThan": "10.0.14393.9060",
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"status": "affected"
}
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},
{
"vendor": "Microsoft",
"product": "Windows Server 2019",
"platforms": [
"x64-based Systems"
],
"versions": [
{
"version": "10.0.17763.0",
"lessThan": "10.0.17763.8644",
"versionType": "custom",
"status": "affected"
}
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2019 (Server Core installation)",
"platforms": [
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],
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{
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},
{
"vendor": "Microsoft",
"product": "Windows Server 2022",
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],
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"status": "affected"
}
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},
{
"vendor": "Microsoft",
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"platforms": [
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],
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},
{
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],
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},
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],
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"versionType": "custom",
"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:H/I:H/A:N",
"baseScore": 8.7,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "CHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.2,
"impactScore": 5.8
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-04-14T19:10:11.707317Z",
"id": "CVE-2026-27928",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-20"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
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],
"references": [
{
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27928",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
}
]
}