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CVE-2026-83907

Full vulnerability record from the local CVENow database.

Description

Exposure of sensitive system information to an unauthorized control sphere in Windows Hello allows an authorized attacker to disclose information locally.

Severity
MEDIUM
CVSS score
5.5 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-10-13 19:20:45.557000
Last modified
2026-10-29 18:19:34.540000
View original CVE JSON
{
  "id": "CVE-2026-83907",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-13T19:20:45.557",
  "lastModified": "2026-10-29T18:19:34.540",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Exposure of sensitive system information to an unauthorized control sphere in Windows Hello allows an authorized attacker to disclose information locally."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Windows 10 Version 21H2",
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            "ARM64-based Systems",
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        },
        {
          "vendor": "Microsoft",
          "product": "Windows 11 version 23H2",
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  ],
  "metrics": {
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        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
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        "ssvcData": {
          "timestamp": "2026-10-13T20:19:30.570561Z",
          "id": "CVE-2026-83907",
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          "role": "CISA Coordinator",
          "version": "2.0.3"
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  "weaknesses": [
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      "source": "[email protected]",
      "type": "Secondary",
      "description": [
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        }
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  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83907",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}