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CVE-2026-15720

Estado: AplazadaAlta (8.6)—

In Open5GS through version 2.7.7 a pre-authentication heap out-of-bounds read in the AMF NAS 5GS mobile-identity handler may result in subscriber-wide denial of service.

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.

AV:N/PR:N/UI:N indica acceso remoto sin privilegios ni interacción (T1190). El heap out-of-bounds read en handler de NAS 5GS causa denial of service a nivel de suscriptor (T1499.004 - application exhaustion).

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

Tecnologías afectadas (1)

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

Open5gs — Open5gsAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-15720",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-15720",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-07-15T14:02:02.606987Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "74b3a70d-cca6-4d34-9789-e83b222ae3be",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.6,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "74b3a70d-cca6-4d34-9789-e83b222ae3be",
      "affectedData": [
        {
          "vendor": "open5gs",
          "product": "open5gs",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "semver",
              "lessThanOrEqual": "2.7.7"
            }
          ],
          "defaultStatus": "unaffected"
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  "published": "2026-07-14T19:16:51.470",
  "references": [
    {
      "url": "https://github.com/open5gs/open5gs/security/advisories/GHSA-f4mx-3x6p-cfwp",
      "source": "74b3a70d-cca6-4d34-9789-e83b222ae3be"
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      "description": [
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          "value": "CWE-125"
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    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Open5GS through version 2.7.7 a pre-authentication heap out-of-bounds read in the AMF NAS 5GS mobile-identity handler may result in subscriber-wide denial of service."
    }
  ],
  "lastModified": "2026-07-15T20:58:48.720",
  "sourceIdentifier": "74b3a70d-cca6-4d34-9789-e83b222ae3be"
}