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CVE-2021-26738

Estado: ModificadaAlta (7.8)—

Zscaler Client Connector for macOS prior to 3.7 had an unquoted search path vulnerability via the PATH variable. A local adversary may be able to execute code with root privileges.

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 (1)

Zscaler — Client Connector

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-26738",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-26738",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-02-26T21:49:27.775796Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "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
      },
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          "integrityImpact": "HIGH",
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          "availabilityImpact": "HIGH",
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          "confidentialityImpact": "HIGH"
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          "product": "Client Connector",
          "versions": [
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              "version": "0",
              "lessThan": "3.7",
              "versionType": "custom"
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  "published": "2023-10-23T14:15:09.187",
  "references": [
    {
      "url": "https://help.zscaler.com/client-connector/client-connector-app-release-summary-2022?applicable_category=macOS&applicable_version=3.7&deployment_date=2022-08-19&id=1414851",
      "tags": [
        "Release Notes"
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    },
    {
      "url": "https://help.zscaler.com/client-connector/client-connector-app-release-summary-2022?applicable_category=macOS&applicable_version=3.7&deployment_date=2022-08-19&id=1414851",
      "tags": [
        "Release Notes"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "cve@zscaler.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-426"
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    {
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      "source": "nvd@nist.gov",
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      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Zscaler Client Connector for macOS prior to 3.7 had an unquoted search path vulnerability via the PATH variable. A local adversary may be able to execute code with root privileges.\n\n\n"
    },
    {
      "lang": "es",
      "value": "Zscaler Client Connector para macOS anterior a 3.7 tenía una vulnerabilidad de ruta de búsqueda sin comillas a través de la variable PATH. Un adversario local puede ejecutar código con privilegios de root."
    }
  ],
  "lastModified": "2026-06-17T03:43:45.433",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:zscaler:client_connector:*:*:*:*:*:macos:*:*",
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  "sourceIdentifier": "cve@zscaler.com"
}