« Volver al listado

CVE-2026-50752

Estado: Pendiente de análisisAlta (7.4)—

A weakness in the certificate validation logic of the deprecated IKEv1 key exchange may allow an unauthenticated attacker positioned as a man-in-the-middle to bypass certificate validation in VPN site-to-site connections that use certificate-based authentication. Successful exploitation could allow interception or modification of traffic traversing the VPN tunnel.

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.

Vector AV:N sugiere T1190, pero CWE-295 (validación de certificados débil) + MitM explícito en descripción indican realmente T1557. Interruptor/modificación de tráfico VPN (I:H) confirma T1565.

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

Network SegmentationLimit Access to Resource Over NetworkFilter Network TrafficEncrypt Sensitive InformationVulnerability ScanningUser Training

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-50752",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-50752",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-09T03:55:37.901004Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve@checkpoint.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.4,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "cve@checkpoint.com",
      "affectedData": [
        {
          "vendor": "checkpoint",
          "product": "Quantum Security Gateway",
          "versions": [
            {
              "status": "affected",
              "version": "R82.10 with Jumbo Hotfix Take 19 or below"
            },
            {
              "status": "affected",
              "version": "R82 with Jumbo Hotfix Take 103 or below"
            },
            {
              "status": "affected",
              "version": "R81.20 with Jumbo Hotfix Take 141 or below"
            },
            {
              "status": "affected",
              "version": "R81.10, R81, and R80.40"
            }
          ]
        },
        {
          "vendor": "checkpoint",
          "product": "Spark Firewalls",
          "versions": [
            {
              "status": "affected",
              "version": "R80.20.X, R81.10.X, and R82.00.X"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-06-08T12:16:32.503",
  "references": [
    {
      "url": "https://support.checkpoint.com/results/sk/sk185035",
      "source": "cve@checkpoint.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve@checkpoint.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-295"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A weakness in the certificate validation logic of the deprecated IKEv1 key exchange may allow an unauthenticated attacker positioned as a man-in-the-middle to bypass certificate validation in VPN site-to-site connections that use certificate-based authentication. Successful exploitation could allow interception or modification of traffic traversing the VPN tunnel."
    },
    {
      "lang": "es",
      "value": "Una debilidad en la lógica de validación de certificados del intercambio de claves IKEv1 obsoleto podría permitir a un atacante no autenticado posicionado como un man-in-the-middle eludir la validación de certificados en conexiones VPN de sitio a sitio que utilizan autenticación basada en certificados. Una explotación exitosa podría permitir la interceptación o modificación del tráfico que atraviesa el túnel VPN."
    }
  ],
  "lastModified": "2026-07-23T07:10:00.113",
  "sourceIdentifier": "cve@checkpoint.com"
}