« Volver al listado

CVE-2026-40417

Estado: AnalizadaAlta (7.8)—

Weak authentication in Dynamics Business Central allows an authorized attacker to elevate privileges locally.

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:L/PR:L sin UI indica escalada local; CWE-1390 y descripción de 'weak authentication' para elevación de privilegios. Impactos: obtención de privilegios elevados (T1548) y posible abuso de cuentas válidas (T1078.001).

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

Execution PreventionUpdate SoftwareUser Account ManagementThreat Intelligence ProgramRestrict File and Directory PermissionsPrivileged Account Management

Tecnologías afectadas (1)

Microsoft — Dynamics 365 Business Central

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-40417",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-40417",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-13T03:56:28.143764Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Microsoft Dynamics 365 Business Central 2024 Release Wave 2",
          "versions": [
            {
              "status": "affected",
              "version": "25.0",
              "lessThan": "25.2.48119",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Dynamics 365 Business Central 2026 Release Wave 1",
          "versions": [
            {
              "status": "affected",
              "version": "28.0",
              "lessThan": "28.0.49873",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Dynamics 365 Business Central Release Wave 1 2025",
          "versions": [
            {
              "status": "affected",
              "version": "26.0",
              "lessThan": "26.0.48120",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Dynamics 365 Business Central Release Wave 2 2025",
          "versions": [
            {
              "status": "affected",
              "version": "27.0",
              "lessThan": "27.0.48102",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-05-12T18:17:19.817",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40417",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secure@microsoft.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1390"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Weak authentication in Dynamics Business Central allows an authorized attacker to elevate privileges locally."
    }
  ],
  "lastModified": "2026-08-10T16:19:42.430",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:dynamics_365_business_central:2024:release_wave_2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "53A74676-442E-49AC-8BCD-DC59757D5ED3"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:dynamics_365_business_central:2025:release_wave_1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EEF0AF6B-F7CD-4140-8A72-B406983E5867"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:dynamics_365_business_central:2025:release_wave_2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "92D9BF50-06D3-4E4E-8DE8-EEF8479BB88D"
            },
            {
              "criteria": "cpe:2.3:a:microsoft:dynamics_365_business_central:2026:release_wave_1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "697BB01D-8F64-4699-BB16-DC84A5D39979"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}