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CVE-2021-28664

Estado: AnalizadaAlta (8.8)⚠ Explotación activa

The Arm Mali GPU kernel driver allows privilege escalation or a denial of service (memory corruption) because an unprivileged user can achieve read/write access to read-only pages. This affects Bifrost r0p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r8p0 through r30p0 before r31p0.

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).

CISA KEV — explotada activamente

🎯 Técnicas ATT&CK

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

Explotación corregida por reglas (vector CVSS): era T1068

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

Vulnerability ScanningThreat Intelligence ProgramPrivileged Account ManagementNetwork SegmentationFilter Network TrafficDisable or Remove Feature or Program

Tecnologías afectadas (3)

ARM — Bifrost GPU Kernel DriverARM — Midgard GPU Kernel DriverARM — Valhall GPU Kernel Driver

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-28664",
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          "role": "CISA Coordinator",
          "options": [
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            },
            {
              "automatable": "no"
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              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2025-02-03T14:36:45.829744Z"
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  "published": "2021-05-10T15:15:07.590",
  "references": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-28664",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "value": "CWE-787"
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      "description": [
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  "descriptions": [
    {
      "lang": "en",
      "value": "The Arm Mali GPU kernel driver allows privilege escalation or a denial of service (memory corruption) because an unprivileged user can achieve read/write access to read-only pages. This affects Bifrost r0p0 through r29p0 before r30p0, Valhall r19p0 through r29p0 before r30p0, and Midgard r8p0 through r30p0 before r31p0."
    },
    {
      "lang": "es",
      "value": "El controlador del kernel de la GPU Arm Mali permite una escalada de privilegios o una denegación de servicio (corrupción de memoria) porque un usuario sin privilegios puede conseguir acceso de lectura/escritura a páginas de sólo lectura. Esto afecta a Bifrost r0p0 hasta r29p0 antes de r30p0, Valhall r19p0 hasta r29p0 antes de r30p0, y Midgard r8p0 hasta r30p0 antes de r31p0"
    }
  ],
  "lastModified": "2026-06-17T03:46:43.977",
  "cisaActionDue": "2021-11-17",
  "cisaExploitAdd": "2021-11-03",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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  "sourceIdentifier": "cve@mitre.org",
  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Arm Mali Graphics Processing Unit (GPU) Unspecified Vulnerability"
}