FKIE_CVE-2018-18489

Vulnerability from fkie_nvd - Published: 2019-04-16 19:29 - Updated: 2026-06-17 01:47
Severity
4.9 (Medium) - CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Summary
The ping feature in the Diagnostic functionality on TP-LINK WR840N v2 Firmware 3.16.9 Build 150701 Rel.51516n devices allows remote attackers to cause a denial of service (HTTP service termination) by modifying the packet size to be higher than the UI limit of 1472.
References
cve@mitre.orghttps://youtu.be/VGNEYWR9MgYExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://youtu.be/VGNEYWR9MgYExploit, Third Party Advisory
Impacted products
Vendor Product Version
tp-link wr840n_firmware 3.16.9
tp-link wr840n 2
To clipboard 

{
  "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:tp-link:wr840n_firmware:3.16.9:*:*:*:*:*:*:*",
              "matchCriteriaId": "01391731-EA92-41C2-BFE8-5BBA29941B78",
              "vulnerable": true
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          ],
          "negate": false,
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          "operator": "OR"
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      ],
      "operator": "AND"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The ping feature in the Diagnostic functionality on TP-LINK WR840N v2 Firmware 3.16.9 Build 150701 Rel.51516n devices allows remote attackers to cause a denial of service (HTTP service termination) by modifying the packet size to be higher than the UI limit of 1472."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n ping en la funcionalidad de diagn\u00f3stico en TP-LINK WR840N v2 Firmware 3.16.9 Build 150701 Rel.51516n podr\u00eda permitir a los atacantes remotos causar una denegaci\u00f3n de servicio (terminaci\u00f3n del servicio HTTP) modificando el tama\u00f1o del paquete para que sea mayor que el l\u00edmite de UI de 1472."
    }
  ],
  "id": "CVE-2018-18489",
  "lastModified": "2026-06-17T01:47:23.250",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 6.8,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:C",
          "version": "2.0"
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        "obtainUserPrivilege": false,
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        "type": "Primary",
        "userInteractionRequired": false
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    "cvssMetricV30": [
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 4.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
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  "published": "2019-04-16T19:29:00.253",
  "references": [
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  "vulnStatus": "Modified",
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          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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