« Volver al listado

CVE-2026-68883

Estado: RecibidaAlta (8.5)—

Desbordamiento de búfer basado en montículo 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.

Vector AV:N, PR:L, UI:N es red con privilegios (T1210). La descripción indica elevación de privilegios por red sin confirmar admin/root ni ejecución de comandos, por lo que T1059 no está sustentado.

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-2026-68883",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-68883",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-13T21:10:00.798790Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "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 (CU8)",
          "versions": [
            {
              "status": "affected",
              "version": "-"
            }
          ],
          "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": "2026-10-13T21:17:41.847",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68883",
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secure@microsoft.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Heap-based buffer overflow in SQL Server allows an authorized attacker to elevate privileges over a network."
    }
  ],
  "lastModified": "2026-10-13T22:17:39.600",
  "sourceIdentifier": "secure@microsoft.com"
}