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CVE-2021-21818

Estado: ModificadaAlta (7.5)—

A hard-coded password vulnerability exists in the Zebra IP Routing Manager functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to a denial of service. 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)

Mostrar
{
  "id": "CVE-2021-21818",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
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  "affected": [
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      "affectedData": [
        {
          "vendor": "n/a",
          "product": "D-Link",
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              "status": "affected",
              "version": "D-LINK DIR-3040 1.13B03"
            }
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  "published": "2021-07-16T11:15:09.970",
  "references": [
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      "tags": [
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      "source": "talos-cna@cisco.com"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "talos-cna@cisco.com",
      "description": [
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          "value": "CWE-259"
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          "value": "CWE-798"
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  "descriptions": [
    {
      "lang": "en",
      "value": "A hard-coded password vulnerability exists in the Zebra IP Routing Manager functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to a denial of service. An attacker can send a sequence of requests to trigger this vulnerability."
    },
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      "lang": "es",
      "value": "Se presenta una vulnerabilidad de contraseña embebida en la funcionalidad Zebra IP Routing Manager de D-LINK DIR-3040 versión 1.13B03. Una petición de red especialmente diseñada puede conllevar a una denegación de servicio. Un atacante puede enviar una secuencia de peticiones para activar esta vulnerabilidad"
    }
  ],
  "lastModified": "2026-06-17T03:36:10.417",
  "configurations": [
    {
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}