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CVE-2026-96956

Estado: RecibidaAlta (8)—

Desbordamiento de búfer basado en pila en SQL Server que permite a un atacante autorizado escalar privilegios a través de una red.

Traducción automática del texto original de NVD (en inglés).

CVSS

Probabilidad de explotación (EPSS)

FIRST aún no ha puntuado esta CVE (habitual en CVEs muy recientes o rechazadas).

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.

El vector AV:N/PR:H indica explotación remota con privilegios, por lo que T1210. El texto dice 'elevate privileges', pero no menciona ejecución de comandos, así que descarto T1059 de la pista.

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

Threat Intelligence ProgramApplication Isolation and SandboxingExploit ProtectionUpdate SoftwareVulnerability ScanningPrivileged Account Management

Tecnologías afectadas (1)

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

Microsoft — SQL ServerAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-96956",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-96956",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-13T21:59:46.864724Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 1.3
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Microsoft SQL Server 2017 (GDR)",
          "versions": [
            {
              "status": "affected",
              "version": "14.0.0",
              "lessThan": "14.0.2140.2",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft SQL Server 2017 for x64-based Systems (CU31)",
          "versions": [
            {
              "status": "affected",
              "version": "14.0.3006.16",
              "lessThan": "14.0.3560.2",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft SQL Server 2019 (GDR)",
          "versions": [
            {
              "status": "affected",
              "version": "15.0.0",
              "lessThan": "15.0.2200.2",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft SQL Server 2019 for x64-based Systems (CU32)",
          "versions": [
            {
              "status": "affected",
              "version": "15.0.4003.23",
              "lessThan": "15.0.4500.2",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft SQL Server 2022 (GDR)",
          "versions": [
            {
              "status": "affected",
              "version": "16.0.0",
              "lessThan": "16.0.1210.3",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft SQL Server 2022 for x64-based Systems (CU27)",
          "versions": [
            {
              "status": "affected",
              "version": "16.0.4003.1",
              "lessThan": "16.0.4305.5",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft SQL Server 2025 for x64-based Systems (CU9)",
          "versions": [
            {
              "status": "affected",
              "version": "17.0.4006.2",
              "lessThan": "17.0.5015.4",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft SQL Server 2025 for x64-based Systems (GDR)",
          "versions": [
            {
              "status": "affected",
              "version": "17.0.1050.2",
              "lessThan": "17.0.1145.4",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        }
      ]
    }
  ],
  "published": "2026-10-13T21:20:14.737",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96956",
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secure@microsoft.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Stack-based buffer overflow in SQL Server allows an authorized attacker to elevate privileges over a network."
    }
  ],
  "lastModified": "2026-10-13T23:19:28.390",
  "sourceIdentifier": "secure@microsoft.com"
}