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CVE-2021-21819

Estado: ModificadaAlta (7.2)—

A code execution vulnerability exists in the Libcli Test Environment functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to arbitrary command execution. An attacker can send a sequence of requests to trigger this vulnerability.

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)

Dlink — Dir-3040 Firmware

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-21819",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 9,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
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        "obtainAllPrivilege": false,
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          "baseScore": 9.1,
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  "affected": [
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      "affectedData": [
        {
          "vendor": "n/a",
          "product": "D-Link",
          "versions": [
            {
              "status": "affected",
              "version": "D-LINK DIR-3040 1.13B03"
            }
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        }
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  ],
  "published": "2021-07-16T11:15:10.003",
  "references": [
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      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1284",
      "tags": [
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        "Third Party Advisory"
      ],
      "source": "talos-cna@cisco.com"
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    {
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "talos-cna@cisco.com",
      "description": [
        {
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          "value": "CWE-78"
        }
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    },
    {
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-78"
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      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A code execution vulnerability exists in the Libcli Test Environment functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to arbitrary command execution. An attacker can send a sequence of requests to trigger this vulnerability."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de ejecución de código en la funcionalidad de Libcli Test Environment de D-LINK DIR-3040 versión 1.13B03. Una petición de red especialmente diseñada puede conllevar a una ejecución de un comando arbitrario. Un atacante puede enviar una secuencia de peticiones para activar esta vulnerabilidad"
    }
  ],
  "lastModified": "2026-06-17T03:36:10.530",
  "configurations": [
    {
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  "sourceIdentifier": "talos-cna@cisco.com"
}