FKIE_CVE-2021-45740

Vulnerability from fkie_nvd - Published: 2022-02-04 02:15 - Updated: 2026-06-17 04:14
Summary
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.
Impacted products
Vendor Product Version
totolink a720r_firmware 4.1.5cu.470_b20200911
totolink a720r -

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
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          "cpeMatch": [
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              "criteria": "cpe:2.3:o:totolink:a720r_firmware:4.1.5cu.470_b20200911:*:*:*:*:*:*:*",
              "matchCriteriaId": "C7B3C9D3-E762-4AEE-9E03-B2A1819785A4",
              "vulnerable": true
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          "operator": "OR"
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "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 versi\u00f3n v4.1.5cu.470_B20200911 contiene un desbordamiento de pila en la funci\u00f3n setWiFiWpsStart. Esta vulnerabilidad permite a atacantes causar una denegaci\u00f3n de servicio (DoS) por medio del par\u00e1metro pin"
    }
  ],
  "id": "CVE-2021-45740",
  "lastModified": "2026-06-17T04:14:02.300",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
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    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "source": "nvd@nist.gov",
        "type": "Primary"
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  },
  "published": "2022-02-04T02:15:08.387",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/pjqwudi/my_vuln/blob/main/totolink/vuln_4/4.md"
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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