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CVE-2026-7546

Estado: AplazadaAlta (8.9)—

A security vulnerability has been detected in Totolink NR1800X 9.1.0u.6279_B20210910. The impacted element is the function find_host_ip of the component lighttpd. Such manipulation of the argument Host leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used.

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 remoto en lighttpd (AV:N, PR:N, UI:N) permite ejecución de código arbitrario. CWE-119/121 y VC:H confirman impacto crítico en confidencialidad, integridad y disponibilidad.

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 ManagementExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate SoftwareVulnerability Scanning

Tecnologías afectadas (2)

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

Lighttpd — LighttpdAITotolink — Nr1800xAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2026-7546",
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          "options": [
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      "affectedData": [
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            "cpe:2.3:o:totolink:nr1800x_firmware:*:*:*:*:*:*:*:*"
          ],
          "vendor": "Totolink",
          "modules": [
            "lighttpd"
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          "product": "NR1800X",
          "versions": [
            {
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              "version": "9.1.0u.6279_B20210910"
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      "url": "https://github.com/newym/cve/blob/main/totolinknr1800x.md",
      "source": "cna@vuldb.com"
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    {
      "url": "https://vuldb.com/submit/804404",
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      "url": "https://vuldb.com/vuln/360357",
      "source": "cna@vuldb.com"
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      "url": "https://vuldb.com/vuln/360357/cti",
      "source": "cna@vuldb.com"
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    {
      "lang": "en",
      "value": "A security vulnerability has been detected in Totolink NR1800X 9.1.0u.6279_B20210910. The impacted element is the function find_host_ip of the component lighttpd. Such manipulation of the argument Host leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used."
    }
  ],
  "lastModified": "2026-06-17T11:02:34.310",
  "sourceIdentifier": "cna@vuldb.com"
}