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CVE-2025-49737

Estado: AnalizadaAlta (7)—

Concurrent execution using shared resource with improper synchronization ('race condition') in Microsoft Teams 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.

AV:L sin UI:N y PR:L indican escalada local. Race condition (CWE-362) en Teams permite a usuario autenticado elevar privilegios a nivel superior.

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 ProgramExecution PreventionApplication Isolation and SandboxingExploit ProtectionUpdate Software

Tecnologías afectadas (1)

Microsoft — Teams

CWE

Referencias

JSON original (NVD)

Mostrar
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  "cveTags": [],
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          "role": "CISA Coordinator",
          "options": [
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            },
            {
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            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-07-09T04:01:25.440186Z"
        }
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          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": "Microsoft Teams for Mac, New Edition",
          "versions": [
            {
              "status": "affected",
              "version": "1.0.0.0",
              "lessThan": "25163.3001.3726.6503",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-07-08T17:16:02.460",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49737",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
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      "description": [
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          "value": "CWE-362"
        }
      ]
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      "lang": "en",
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    },
    {
      "lang": "es",
      "value": "La ejecución simultánea utilizando un recurso compartido con sincronización incorrecta ('condición de ejecución') en Microsoft Teams permite que un atacante autorizado eleve privilegios localmente."
    }
  ],
  "lastModified": "2026-06-17T09:31:51.647",
  "configurations": [
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  "sourceIdentifier": "secure@microsoft.com"
}