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CVE-2020-8950

Estado: ModificadaAlta (7.8)—💥 PoC

El servicio AUEPLauncher en Radeon AMD User Experience Program Launcher versiones hasta 1.0.0.1, en Windows permite la elevación de privilegios mediante la colocación de un archivo diseñado en %PROGRAMDATA%\AMD\PPC\upload y luego crear un enlace simbólico en %PROGRAMDATA%\AMD\PPC\temp que apunta hacia una carpeta arbitraria con un nombre de archivo arbitrario.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (1)

AMD — User Experience Program

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-8950",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-02-12T20:15:15.010",
  "references": [
    {
      "url": "https://heynowyouseeme.blogspot.com/2020/02/another-privilege-escalation-filewrite.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://heynowyouseeme.blogspot.com/2020/02/privilege-escalation-filewrite-eop-in.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://heynowyouseeme.blogspot.com/2020/02/another-privilege-escalation-filewrite.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://heynowyouseeme.blogspot.com/2020/02/privilege-escalation-filewrite-eop-in.html",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-59"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The AUEPLauncher service in Radeon AMD User Experience Program Launcher through 1.0.0.1 on Windows allows elevation of privilege by placing a crafted file in %PROGRAMDATA%\\AMD\\PPC\\upload and then creating a symbolic link in %PROGRAMDATA%\\AMD\\PPC\\temp that points to an arbitrary folder with an arbitrary file name."
    },
    {
      "lang": "es",
      "value": "El servicio AUEPLauncher en Radeon AMD User Experience Program Launcher versiones hasta 1.0.0.1, en Windows permite la elevación de privilegios mediante la colocación de un archivo diseñado en %PROGRAMDATA%\\AMD\\PPC\\upload y luego crear un enlace simbólico en %PROGRAMDATA%\\AMD\\PPC\\temp que apunta hacia una carpeta arbitraria con un nombre de archivo arbitrario."
    }
  ],
  "lastModified": "2026-06-17T03:27:14.970",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:amd:user_experience_program:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "51ECF707-8BAF-428B-A8DA-FB03051D69C1",
              "versionEndIncluding": "1.0.0.1"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
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            }
          ],
          "operator": "OR"
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      ],
      "operator": "AND"
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  ],
  "sourceIdentifier": "cve@mitre.org"
}