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CVE-2026-44811

Estado: ModificadaAlta (7.8)—

Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Buffer overflow local (AV:L/PR:L/UI:N) en librería de sistema permite escalada de privilegios. Ejecutable en contexto elevado tras explotación.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Execution PreventionThreat Intelligence ProgramRestrict Web-Based ContentPrivileged Account ManagementLimit Software InstallationBehavior Prevention on Endpoint

Tecnologías afectadas (1)

Microsoft — Windows 11 26h1

CWE

Referencias

JSON original (NVD)

Mostrar
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
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  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Windows 11 version 26H1",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.28000.0",
              "lessThan": "10.0.28000.2269",
              "versionType": "custom"
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          ],
          "platforms": [
            "ARM64-based Systems",
            "x64-based Systems"
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  "published": "2026-06-09T17:17:17.147",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-44811",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secure@microsoft.com",
      "description": [
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          "value": "CWE-20"
        },
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    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally."
    },
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      "lang": "es",
      "value": "Uso después de liberar en la biblioteca principal de Windows DWM permite a un atacante autorizado elevar privilegios localmente."
    }
  ],
  "lastModified": "2026-07-23T08:10:00.137",
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