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CVE-2025-49738

Estado: AnalizadaAlta (7.8)—

Improper link resolution before file access ('link following') in Microsoft PC Manager 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.

Acceso local (AV:L) sin interacción del usuario (UI:N) en software privilegiado. CWE-59 (link following) permite escalada local. Microsoft PC Manager requiere autenticación previa pero ejecuta operaciones privilegiadas.

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 — PC Manager

CWE

Referencias

JSON original (NVD)

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  "cveTags": [],
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          "id": "CVE-2025-49738",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-07-09T04:01:22.118596Z"
        }
      }
    ],
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        "cvssData": {
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          "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 PC Manager",
          "versions": [
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "3.17.4",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-07-08T17:16:02.647",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49738",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
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      "source": "secure@microsoft.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-59"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper link resolution before file access ('link following') in Microsoft PC Manager allows an authorized attacker to elevate privileges locally."
    },
    {
      "lang": "es",
      "value": "La resolución incorrecta de un vínculo antes del acceso al archivo ('seguimiento de vínculo') en Microsoft PC Manager permite que un atacante autorizado eleve privilegios localmente."
    }
  ],
  "lastModified": "2026-06-17T09:31:51.767",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "3.17.4.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secure@microsoft.com"
}