CVE-2026-83504
Full vulnerability record from the local CVENow database.
Description
Time-of-check time-of-use (toctou) race condition in Windows SmartScreen allows an authorized attacker to disclose information locally.
Severity
MEDIUM
CVSS score
4.7
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-10-13 19:19:55.313000
Last modified
2026-10-28 18:09:23.177000
View original CVE JSON
{
"id": "CVE-2026-83504",
"sourceIdentifier": "[email protected]",
"published": "2026-10-13T19:19:55.313",
"lastModified": "2026-10-28T18:09:23.177",
"vulnStatus": "Analyzed",
"cveTags": [],
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{
"lang": "en",
"value": "Time-of-check time-of-use (toctou) race condition in Windows SmartScreen allows an authorized attacker to disclose information locally."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Microsoft",
"product": "Windows 11 version 23H2",
"platforms": [
"ARM64-based Systems"
],
"versions": [
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{
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],
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},
{
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}
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]
}
],
"metrics": {
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{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "HIGH",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 1.0,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
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"id": "CVE-2026-83504",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-367"
}
]
}
],
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"references": [
{
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"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
}
]
}