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CVE-2021-26116

Estado: ModificadaAlta (8.8)—

An improper neutralization of special elements used in an OS command vulnerability in the command line interpreter of FortiAuthenticator before 6.3.1 may allow an authenticated attacker to execute unauthorized commands via specifically crafted arguments to existing commands.

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)

Fortinet — Fortiauthenticator

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2021-26116",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2021-26116",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-10-23T14:12:39.908055Z"
        }
      }
    ],
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
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          "confidentialityImpact": "PARTIAL"
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "type": "Secondary",
        "source": "psirt@fortinet.com",
        "cvssData": {
          "scope": "UNCHANGED",
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  "affected": [
    {
      "source": "psirt@fortinet.com",
      "affectedData": [
        {
          "vendor": "Fortinet",
          "product": "Fortinet FortiAuthenticator",
          "versions": [
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  ],
  "published": "2022-04-06T16:15:07.967",
  "references": [
    {
      "url": "https://fortiguard.com/advisory/FG-IR-21-068",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@fortinet.com"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "value": "CWE-78"
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    },
    {
      "lang": "es",
      "value": "Una neutralización inapropiada de los elementos especiales usados en una vulnerabilidad de comandos del Sistema Operativo en el intérprete de línea de comandos de FortiAuthenticator versiones anteriores a 6.3.1, puede permitir a un atacante autenticado ejecutar comandos no autorizados por medio de argumentos específicamente diseñados para comandos existentes"
    }
  ],
  "lastModified": "2026-06-17T03:42:53.417",
  "configurations": [
    {
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        {
          "negate": false,
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}