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CVE-2025-49464

Estado: AnalizadaMedia (6.5)—

Classic buffer overflow in certain Zoom Clients for Windows may allow an authorised user to conduct a denial of service via network access.

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)

Zoom — Zoom

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-49464",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-49464",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-07-10T18:01:39.709834Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@zoom.us",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@zoom.us",
      "affectedData": [
        {
          "vendor": "Zoom Communications Inc.",
          "product": "Zoom Clients for Windows",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "6.4.5",
              "versionType": "custom"
            }
          ],
          "platforms": [
            "Windows"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-07-10T17:15:47.897",
  "references": [
    {
      "url": "https://https://www.zoom.com/en/trust/security-bulletin/zsb-25028/",
      "tags": [
        "Broken Link"
      ],
      "source": "security@zoom.us"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@zoom.us",
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Classic buffer overflow in certain Zoom Clients for Windows may allow an authorised user to conduct a denial of service via network access."
    },
    {
      "lang": "es",
      "value": "El desbordamiento de búfer clásico en ciertos clientes Zoom para Windows puede permitir que un usuario autorizado realice una denegación de servicio a través del acceso a la red."
    }
  ],
  "lastModified": "2026-06-17T09:31:21.333",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:zoom:zoom:*:*:*:*:*:windows:*:*",
              "vulnerable": true,
              "matchCriteriaId": "32519CD0-2C2C-4714-AF4B-777D4C2550C7",
              "versionEndExcluding": "6.4.5"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@zoom.us"
}