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CVE-2026-58649

Estado: Pendiente de análisisMedia (6.5)—

Origin validation error in .NET allows an unauthorized attacker to disclose information over a network.

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).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Microsoft — DotnetAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-58649",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-58649",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-08T19:45:24.737506Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "secure@microsoft.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "secure@microsoft.com",
      "affectedData": [
        {
          "vendor": "Microsoft",
          "product": ".NET 10.0",
          "versions": [
            {
              "status": "affected",
              "version": "10.0.0",
              "lessThan": "10.0.111, 10.0.400",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": ".NET 11.0",
          "versions": [
            {
              "status": "affected",
              "version": "11.0.0",
              "lessThan": "11.0 RC1",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": ".NET 8.0",
          "versions": [
            {
              "status": "affected",
              "version": "8.0.0",
              "lessThan": "8.0.130, 8.0.424",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": ".NET 9.0",
          "versions": [
            {
              "status": "affected",
              "version": "9.0.0",
              "lessThan": "9.0.120, 9.0.317",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Visual Studio 2022 version 17.14",
          "versions": [
            {
              "status": "affected",
              "version": "17.14.0",
              "lessThan": "17.14.40",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Visual Studio 2026 version 18.9",
          "versions": [
            {
              "status": "affected",
              "version": "18.9.0",
              "lessThan": "18.9.3",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-09-08T18:17:44.380",
  "references": [
    {
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58649",
      "source": "secure@microsoft.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secure@microsoft.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-346"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Origin validation error in .NET allows an unauthorized attacker to disclose information over a network."
    }
  ],
  "lastModified": "2026-09-08T20:17:35.987",
  "sourceIdentifier": "secure@microsoft.com"
}