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CVE-2021-45740

Estado: ModificadaCrítica (9.8)—

TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a stack overflow in the setWiFiWpsStart function. This vulnerability allows attackers to cause a Denial of Service (DoS) via the pin parameter.

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)

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2021-45740",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
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          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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  "affected": [
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      "affectedData": [
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  "published": "2022-02-04T02:15:08.387",
  "references": [
    {
      "url": "https://github.com/pjqwudi/my_vuln/blob/main/totolink/vuln_4/4.md",
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        "Third Party Advisory"
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  "descriptions": [
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      "value": "TOTOLINK A720R v4.1.5cu.470_B20200911 was discovered to contain a stack overflow in the setWiFiWpsStart function. This vulnerability allows attackers to cause a Denial of Service (DoS) via the pin parameter."
    },
    {
      "lang": "es",
      "value": "Se ha detectado que TOTOLINK A720R versión v4.1.5cu.470_B20200911 contiene un desbordamiento de pila en la función setWiFiWpsStart. Esta vulnerabilidad permite a atacantes causar una denegación de servicio (DoS) por medio del parámetro pin"
    }
  ],
  "lastModified": "2026-06-17T04:14:02.300",
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