CVE-2026-18754

Estado: AplazadaCrítica (9.1)—

The product firmware contains an embedded, static RSA private key utilized by the Lighttpd web server for TLS termination. Exposure of this private key allows malicious actors to breach the confidentiality and integrity of HTTPS communications, enabling traffic decryption and server spoofing.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Puntuación base: 9.1

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.44%
Percentil entre todas las CVEs puntuadas: 36
Fecha de la puntuación: 4/10/2026

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.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access85 %
Impacto principalT1212 Exploitation for Credential Accesscredential access90 %
Impacto secundarioT1557.002 ARP Cache Poisoningcredential access · collection80 %
Impacto secundarioT1565.002 Transmitted Data Manipulationimpact75 %

Clave RSA privada estática embebida en firmware expuesto en red (AV:N, PR:N). Permite descifrar HTTPS (T1212), suplantar servidor (T1565.002) e interceptar tráfico (T1557.002).

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

Limit Access to Resource Over Network Filter Network Traffic Encrypt Sensitive Information Application Isolation and Sandboxing Exploit Protection Update Software

Tecnologías afectadas (2)

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

Lighttpd — Lighttpd^AI Unknown Vendor — Product Firmware^AI

CWE

CWE-321

Referencias

https://www.geovision.com.tw/cyber_security.php

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-18754",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-18754",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-04T14:38:28.332319Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "0df08a0e-a200-4957-9bb0-084f562506f9",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.1,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "0df08a0e-a200-4957-9bb0-084f562506f9",
      "affectedData": [
        {
          "vendor": "GeoVision Inc.",
          "product": "GV-AS1620 (GV-Cloud)",
          "versions": [
            {
              "status": "affected",
              "version": "V1.16"
            },
            {
              "status": "unaffected",
              "version": "V1.17"
            }
          ],
          "platforms": [
            "Linux"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-08-04T08:16:34.803",
  "references": [
    {
      "url": "https://www.geovision.com.tw/cyber_security.php",
      "source": "0df08a0e-a200-4957-9bb0-084f562506f9"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "0df08a0e-a200-4957-9bb0-084f562506f9",
      "description": [
        {
          "lang": "en",
          "value": "CWE-321"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The\nproduct firmware contains an embedded, static RSA private key utilized by the\nLighttpd web server for TLS termination. Exposure of this private key allows\nmalicious actors to breach the confidentiality and integrity of HTTPS\ncommunications, enabling traffic decryption and server spoofing."
    }
  ],
  "lastModified": "2026-09-09T15:41:02.580",
  "sourceIdentifier": "0df08a0e-a200-4957-9bb0-084f562506f9"
}