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CVE-2026-24018

Estado: AnalizadaAlta (7.8)—

A UNIX symbolic link (Symlink) following vulnerability in Fortinet FortiClientLinux 7.4.0 through 7.4.4, FortiClientLinux 7.2.2 through 7.2.12 may allow a local and unprivileged user to escalate their privileges to root.

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.

Vulnerabilidad de symlink en FortiClient Linux (CWE-61) permite escalación de privilegios local (AV:L, PR:L) sin interacción del usuario a nivel root, clasificada como T1068 con impacto T1548 (obtención de acceso privilegiado).

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 PreventionUpdate SoftwareUser Account ManagementThreat Intelligence ProgramRestrict File and Directory PermissionsPrivileged Account Management

Tecnologías afectadas (1)

Fortinet — Forticlient

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-24018",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-24018",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-11T03:56:55.161799Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "psirt@fortinet.com",
        "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": "psirt@fortinet.com",
      "affectedData": [
        {
          "cpes": [
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            "cpe:2.3:a:fortinet:forticlientlinux:7.4.3:*:*:*:*:*:*:*",
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            "cpe:2.3:a:fortinet:forticlientlinux:7.2.5:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:forticlientlinux:7.2.4:*:*:*:*:*:*:*",
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            "cpe:2.3:a:fortinet:forticlientlinux:7.2.2:*:*:*:*:*:*:*"
          ],
          "vendor": "Fortinet",
          "product": "FortiClientLinux",
          "versions": [
            {
              "status": "affected",
              "version": "7.4.0",
              "versionType": "semver",
              "lessThanOrEqual": "7.4.4"
            },
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              "status": "affected",
              "version": "7.2.2",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.12"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-03-10T18:18:17.560",
  "references": [
    {
      "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-083",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@fortinet.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@fortinet.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-61"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A UNIX symbolic link (Symlink) following vulnerability in Fortinet FortiClientLinux 7.4.0 through 7.4.4, FortiClientLinux 7.2.2 through 7.2.12 may allow a local and unprivileged user to escalate their privileges to root."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de seguimiento de enlaces simbólicos (Symlink) de UNIX en Fortinet FortiClientLinux 7.4.0 hasta 7.4.4, FortiClientLinux 7.2.2 hasta 7.2.12 puede permitir a un usuario local y no privilegiado escalar sus privilegios a root."
    }
  ],
  "lastModified": "2026-06-17T10:22:28.903",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "7.2.13",
              "versionStartIncluding": "7.2.2"
            },
            {
              "criteria": "cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:linux:*:*",
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              "versionEndExcluding": "7.4.5",
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            }
          ],
          "operator": "OR"
        }
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  ],
  "sourceIdentifier": "psirt@fortinet.com"
}