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CVE-2022-29643

Estado: ModificadaAlta (7.5)—

TOTOLINK A3100R V4.1.2cu.5050_B20200504 and V4.1.2cu.5247_B20211129 were discovered to contain a stack overflow via the macAddress parameter in the function setMacQos. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

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)

Totolink — A3100r Firmware

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2022-29643",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 3.9
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  "affected": [
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      "affectedData": [
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          "product": "n/a",
          "versions": [
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  "published": "2022-05-18T12:15:08.440",
  "references": [
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      "url": "https://github.com/shijin0925/IOT/blob/master/TOTOLINK%20A3100R/6.md",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
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      "description": [
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          "lang": "en",
          "value": "CWE-787"
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  ],
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    {
      "lang": "en",
      "value": "TOTOLINK A3100R V4.1.2cu.5050_B20200504 and V4.1.2cu.5247_B20211129 were discovered to contain a stack overflow via the macAddress parameter in the function setMacQos. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request."
    },
    {
      "lang": "es",
      "value": "Se ha detectado que TOTOLINK A3100R versiones V4.1.2cu.5050_B20200504 y V4.1.2cu.5247_B20211129, contienen un desbordamiento de pila por medio del parámetro macAddress en la función setMacQos. Esta vulnerabilidad permite a atacantes causar una Denegación de Servicio (DoS) por medio de una petición POST diseñada"
    }
  ],
  "lastModified": "2026-06-17T04:40:33.213",
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