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CVE-2026-85031

Estado: AplazadaAlta (8.6)—

A vulnerability was found in TOTOLINK CP450 4.1.0. The impacted element is an unknown function of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument topicurl results in buffer overflow. Remote exploitation of the attack is possible.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Buffer overflow en servicio remoto (CVSS AV:N) con PR:L, requiere red adyacente o privilegios previos. Permite ejecución de código arbitrario en el dispositivo afectado.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementDisable or Remove Feature or ProgramVulnerability ScanningThreat Intelligence ProgramRestrict Web-Based ContentNetwork Segmentation

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Totolink — Cp450AI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2026-85031",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2026-85031",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2026-09-03T12:50:26.321462Z"
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    "cvssMetricV2": [
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          "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
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          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
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        "obtainAllPrivilege": false,
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        "obtainUserPrivilege": false,
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    ],
    "cvssMetricV31": [
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        "type": "Primary",
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          "scope": "CHANGED",
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    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
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        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 8.6,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "PROOF_OF_CONCEPT",
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          "modifiedUserInteraction": "NOT_DEFINED",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
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          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  },
  "affected": [
    {
      "source": "cna@vuldb.com",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:o:totolink:cp450_firmware:*:*:*:*:*:*:*:*"
          ],
          "vendor": "TOTOLINK",
          "product": "CP450",
          "versions": [
            {
              "status": "affected",
              "version": "4.1.0"
            }
          ]
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      ]
    }
  ],
  "published": "2026-09-03T13:06:19.767",
  "references": [
    {
      "url": "https://vuldb.com/cve/CVE-2026-85031",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/submit/853096",
      "source": "cna@vuldb.com"
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    {
      "url": "https://vuldb.com/vuln/398296",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/vuln/398296/cti",
      "source": "cna@vuldb.com"
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    {
      "url": "https://www.totolink.net/",
      "source": "cna@vuldb.com"
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      "source": "cna@vuldb.com",
      "description": [
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          "value": "CWE-119"
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          "lang": "en",
          "value": "CWE-120"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability was found in TOTOLINK CP450 4.1.0. The impacted element is an unknown function of the file /cgi-bin/cstecgi.cgi. Performing a manipulation of the argument topicurl results in buffer overflow. Remote exploitation of the attack is possible."
    }
  ],
  "lastModified": "2026-09-03T17:25:25.113",
  "sourceIdentifier": "cna@vuldb.com"
}