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CVE-2026-48131

Estado: Pendiente de análisisAlta (8.1)—

The VPN service may mishandle an unexpected IKE fragment value received on the IKE port 500/UDP during the early stage of a connection attempt. This can cause the service to terminate unexpectedly, resulting in denial of service (temporary disruption of VPN-related functionality).

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 CVSS AV:N/PR:N permite explotación remota sin privilegios (T1190). CWE-122 y descripción indican corrupción de memoria que causa terminación inesperada del servicio VPN (DoS T1499.004).

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

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-48131",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-48131",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-26T15:12:47.698813Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve@checkpoint.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "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 6 or below"
            },
            {
              "status": "affected",
              "version": "R82 with Jumbo Hotfix Take 91 or below"
            },
            {
              "status": "affected",
              "version": "R81.20 with Jumbo Hotfix Take 127 or below"
            },
            {
              "status": "affected",
              "version": "All releases from R81.10 and below"
            }
          ]
        }
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  ],
  "published": "2026-05-26T14:16:38.407",
  "references": [
    {
      "url": "https://support.checkpoint.com/results/sk/sk184981",
      "source": "cve@checkpoint.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve@checkpoint.com",
      "description": [
        {
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          "value": "CWE-122"
        }
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The VPN service may mishandle an unexpected IKE fragment value received on the IKE port 500/UDP during the early stage of a connection attempt. This can cause the service to terminate unexpectedly, resulting in denial of service (temporary disruption of VPN-related functionality)."
    },
    {
      "lang": "es",
      "value": "El servicio VPN puede manejar incorrectamente un valor de fragmento IKE inesperado recibido en el puerto IKE 500/UDP durante la etapa inicial de un intento de conexión. Esto puede provocar que el servicio finalice inesperadamente, lo que resulta en denegación de servicio (interrupción temporal de la funcionalidad relacionada con la VPN)."
    }
  ],
  "lastModified": "2026-07-24T11:10:00.170",
  "sourceIdentifier": "cve@checkpoint.com"
}