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CVE-2021-31627

Estado: ModificadaAlta (8.8)—

Buffer Overflow vulnerability in Tenda AC9 V1.0 through V15.03.05.19(6318), and AC9 V3.0 V15.03.06.42_multi, allows attackers to execute arbitrary code via the index 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-2021-31627",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 5.8,
          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "acInsufInfo": false,
        "impactScore": 6.4,
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.5,
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          "scope": "UNCHANGED",
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
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  "published": "2021-10-29T11:15:08.433",
  "references": [
    {
      "url": "https://github.com/Lyc-heng/routers/blob/main/routers/stack3.md",
      "tags": [
        "Exploit",
        "Third Party Advisory"
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      "url": "https://github.com/Lyc-heng/routers/blob/main/routers/stack3.md",
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  "vulnStatus": "Modified",
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      "description": [
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          "lang": "en",
          "value": "CWE-120"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Buffer Overflow vulnerability in Tenda AC9 V1.0 through V15.03.05.19(6318), and AC9 V3.0 V15.03.06.42_multi, allows attackers to execute arbitrary code via the index parameter."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de desbordamiento del búfer en Tenda versiones AC9 V1.0 hasta V15.03.05.19(6318), y AC9 V3.0 V15.03.06.42_multi, permite a atacantes ejecutar código arbitrario por medio del parámetro index"
    }
  ],
  "lastModified": "2026-07-09T01:16:52.897",
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