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CVE-2026-20806

Full vulnerability record from the local CVENow database.

Description

Access of resource using incompatible type ('type confusion') in Windows COM allows an authorized attacker to disclose information locally.

Severity
MEDIUM
CVSS score
5.5 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-14 18:16:42.540000
Last modified
2026-10-26 00:10:00.150000
View original CVE JSON
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  "id": "CVE-2026-20806",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-14T18:16:42.540",
  "lastModified": "2026-10-26T00:10:00.150",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Access of resource using incompatible type ('type confusion') in Windows COM allows an authorized attacker to disclose information locally."
    },
    {
      "lang": "es",
      "value": "Acceso de recurso usando tipo incompatible (’confusión de tipos’) en Windows COM permite a un atacante autorizado divulgar información localmente."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
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          "product": "Windows 10 Version 1809",
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  ],
  "metrics": {
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      {
        "source": "[email protected]",
        "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
      }
    ],
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          "id": "CVE-2026-20806",
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              "exploitation": "none"
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              "automatable": "no"
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              "technicalImpact": "partial"
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          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
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  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-843"
        }
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    }
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  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20806",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}