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CVE-2021-44864

Estado: ModificadaMedia (6.5)—

TP-Link WR886N versión 3.0 1.0.1 Build 150127 Rel.34123n es vulnerable a un desbordamiento del búfer. Los atacantes autenticados pueden bloquear los servicios httpd del router por medio de una petición /userRpm/PingIframeRpm.htm que contiene un redundante & en un parámetro

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)

Tp-link — Wn886n Firmware

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-44864",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-02-08T15:15:07.597",
  "references": [
    {
      "url": "https://github.com/zhlu32/cve/blob/main/tplink/wr886n/Tplink-wr886n-V3-Ping-DOS.md",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/zhlu32/cve/blob/main/tplink/wr886n/Tplink-wr886n-V3-Ping-DOS.md",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "TP-Link WR886N 3.0 1.0.1 Build 150127 Rel.34123n is vulnerable to Buffer Overflow. Authenticated attackers can crash router httpd services via /userRpm/PingIframeRpm.htm request which contains redundant & in parameter."
    },
    {
      "lang": "es",
      "value": "TP-Link WR886N versión 3.0 1.0.1 Build 150127 Rel.34123n es vulnerable a un desbordamiento del búfer. Los atacantes autenticados pueden bloquear los servicios httpd del router por medio de una petición /userRpm/PingIframeRpm.htm que contiene un redundante & en un parámetro"
    }
  ],
  "lastModified": "2026-06-17T04:12:54.660",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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          "operator": "OR"
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      "operator": "AND"
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  "sourceIdentifier": "cve@mitre.org"
}