FKIE_CVE-2026-21223

Vulnerability from fkie_nvd - Published: 2026-01-16 22:16 - Updated: 2026-02-22 17:16
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
5.1 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Summary
Improper privilege management in Microsoft Edge (Chromium-based) allows an authorized attacker to bypass a security feature locally.
References
secure@microsoft.comhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21223Vendor Advisory
Impacted products
Vendor Product Version
microsoft edge_chromium *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "004B4A9D-AEC7-40B6-9C4D-A249AF5EB048",
              "versionEndExcluding": "144.0.3719.82",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper privilege management in Microsoft Edge (Chromium-based) allows an authorized attacker to bypass a security feature locally."
    },
    {
      "lang": "es",
      "value": "El Servicio de Elevaci\u00f3n de Microsoft Edge expone una interfaz COM privilegiada que valida de forma inadecuada los privilegios del proceso llamador. Un usuario local est\u00e1ndar (no administrador) puede invocar el m\u00e9todo de interfaz IElevatorEdge LaunchUpdateCmdElevatedAndWait, haciendo que el servicio ejecute comandos de actualizaci\u00f3n privilegiados como LocalSystem.\nEsto permite a un no administrador habilitar o deshabilitar la Seguridad Basada en Virtualizaci\u00f3n (VBS) de Windows modificando claves de registro de sistema protegidas bajo HKLM\\SYSTEM\\CurrentControlSet\\Control\\DeviceGuard. Deshabilitar VBS debilita protecciones cr\u00edticas de la plataforma como Credential Guard, la Integridad de C\u00f3digo Protegida por Hipervisor (HVCI) y el kernel seguro, lo que resulta en una omisi\u00f3n de caracter\u00edstica de seguridad."
    }
  ],
  "id": "CVE-2026-21223",
  "lastModified": "2026-02-22T17:16:54.310",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "secure@microsoft.com",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.1,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 2.5,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-01-16T22:16:25.983",
  "references": [
    {
      "source": "secure@microsoft.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21223"
    }
  ],
  "sourceIdentifier": "secure@microsoft.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ],
      "source": "secure@microsoft.com",
      "type": "Secondary"
    }
  ]
}


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