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CVE-2020-3957

Estado: ModificadaAlta (7)—

VMware Fusion (11.x before 11.5.5), VMware Remote Console for Mac (11.x and prior) and VMware Horizon Client for Mac (5.x and prior) contain a local privilege escalation vulnerability due to a Time-of-check Time-of-use (TOCTOU) issue in the service opener. Successful exploitation of this issue may allow attackers with normal user privileges to escalate their privileges to root on the system where Fusion, VMRC and Horizon Client are installed.

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).

Tecnologías afectadas (3)

Vmware — FusionVmware — Horizon ClientVmware — Remote Console

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2020-3957",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.4,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "VMware",
          "product": "VMware Fusion",
          "versions": [
            {
              "status": "affected",
              "version": "11.x before 11.5.5"
            }
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        },
        {
          "vendor": "VMware",
          "product": "VMware Remote Console for Mac",
          "versions": [
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              "status": "affected",
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            }
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          "vendor": "VMware",
          "product": "VMware Horizon Client for Mac",
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  "published": "2020-05-29T20:15:11.547",
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        }
      ]
    }
  ],
  "descriptions": [
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      "lang": "en",
      "value": "VMware Fusion (11.x before 11.5.5), VMware Remote Console for Mac (11.x and prior) and VMware Horizon Client for Mac (5.x and prior) contain a local privilege escalation vulnerability due to a Time-of-check Time-of-use (TOCTOU) issue in the service opener. Successful exploitation of this issue may allow attackers with normal user privileges to escalate their privileges to root on the system where Fusion, VMRC and Horizon Client are installed."
    },
    {
      "lang": "es",
      "value": "VMware Fusion (versiones 11.x anteriores a 11.5.5), VMware Remote Console para Mac (versiones anteriores a 11.x ) y VMware Horizon Client para Mac (versiones anteriores a 5.x), contienen una vulnerabilidad de escalada de privilegios local debido a un problema de tipo Time-of-check Time-of-use (TOCTOU) en el abridor de servicio. Una explotación con éxito de este problema puede permitir a atacantes con privilegios de usuario normal escalar sus privilegios a root en el sistema donde están instalados Fusion, VMRC y Horizon Client."
    }
  ],
  "lastModified": "2026-06-17T03:19:19.837",
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