CVE-2026-69729

Estado: AnalizadaAlta (8.8)—

Heap-based buffer overflow in Windows Credential Providers allows an authorized attacker to execute code over a network.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 8.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.91%
Percentil entre todas las CVEs puntuadas: 59
Fecha de la puntuación: 5/10/2026

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.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement85 %
Impacto principalT1059 Command and Scripting Interpreterexecution80 %
Impacto secundarioT1068 Exploitation for Privilege Escalationprivilege escalation75 %

AV:N con PR:L indica explotación de servicio remoto requiriendo privilegios (T1210). CWE-122 (buffer overflow) en Credential Providers permite ejecución de código (T1059) y escalada de privilegios (T1068).

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 Program Privileged Account Management Execution Prevention Disable or Remove Feature or Program Application Isolation and Sandboxing Exploit Protection

Tecnologías afectadas (4)

Microsoft — Windows 11 24h2 Microsoft — Windows 11 25h2 Microsoft — Windows 11 26h1 Microsoft — Windows Server 2025

CWE

CWE-122

Referencias

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69729

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-69729",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-69729",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-10T14:08:40.922787Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/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": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Windows 11 Version 24H2",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.26100.0",
              "lessThan": "10.0.26100.9445",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "ARM64-based Systems",
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows 11 Version 25H2",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.26200.0",
              "lessThan": "10.0.26200.9445",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "ARM64-based Systems",
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows 11 version 26H1",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.28000.0",
              "lessThan": "10.0.28000.2954",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "ARM64-based Systems",
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2025",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.26100.0",
              "lessThan": "10.0.26100.33438",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Windows Server 2025 (Server Core installation)",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.26100.0",
              "lessThan": "10.0.26100.33438",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "x64-based Systems"
          ]
        }
      ]
    }
  ],
  "published": "2026-09-08T18:19:45.010",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69729",
      "tags": [
        "Vendor Advisory",
        "Patch"
      ],
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secure@microsoft.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Heap-based buffer overflow in Windows Credential Providers allows an authorized attacker to execute code over a network."
    }
  ],
  "lastModified": "2026-09-22T20:05:59.300",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*",
              "vulnerable": true,
              "matchCriteriaId": "990434BE-FE81-48CC-8803-94FAEB694DE2",
              "versionEndExcluding": "10.0.26100.9445"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*",
              "vulnerable": true,
              "matchCriteriaId": "045BBF02-6FDD-44D4-B278-0C52A5406956",
              "versionEndExcluding": "10.0.26100.9445"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*",
              "vulnerable": true,
              "matchCriteriaId": "948460EF-4053-4106-8D9E-4EDC3BF7B682",
              "versionEndExcluding": "10.0.26200.9445"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*",
              "vulnerable": true,
              "matchCriteriaId": "D4F1D717-582C-446B-B90F-1D25028DA77F",
              "versionEndExcluding": "10.0.26200.9445"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*",
              "vulnerable": true,
              "matchCriteriaId": "4B46D2B8-7E89-4818-862C-30B9751BA6EA",
              "versionEndExcluding": "10.0.28000.2954"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*",
              "vulnerable": true,
              "matchCriteriaId": "165C7909-F15B-4328-A175-B9FEF3BEB82D",
              "versionEndExcluding": "10.0.28000.2954"
            },
            {
              "criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*",
              "vulnerable": true,
              "matchCriteriaId": "65F785F0-374C-45DC-B4B3-D74E64039608",
              "versionEndExcluding": "10.0.26100.33438"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}