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CVE-2026-26166

Full vulnerability record from the local CVENow database.

Description

Double free in Windows Shell allows an authorized attacker to elevate privileges locally.

Severity
HIGH
CVSS score
7.0 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-14 18:16:50.060000
Last modified
2026-10-26 21:10:00.170000
View original CVE JSON
{
  "id": "CVE-2026-26166",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-14T18:16:50.060",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
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      "lang": "en",
      "value": "Double free in Windows Shell allows an authorized attacker to elevate privileges locally."
    },
    {
      "lang": "es",
      "value": "Doble liberación en el Shell de Windows permite a un atacante autorizado elevar privilegios localmente."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
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        },
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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:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 1.0,
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    "ssvcV203": [
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            },
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              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-415"
        }
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    }
  ],
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  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26166",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}