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CVE-2025-50054

Estado: AnalizadaMedia (5.5)—

Buffer overflow in OpenVPN ovpn-dco-win version 1.3.0 and earlier and version 2.5.8 and earlier allows a local user process to send a too large control message buffer to the kernel driver resulting in a system crash

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)

Openvpn — Ovpn-dco-win

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-50054",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-50054",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-06-23T15:48:35.752930Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/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": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@openvpn.net",
      "affectedData": [
        {
          "repo": "https://github.com/OpenVPN/ovpn-dco-win",
          "vendor": "OpenVPN",
          "product": "ovpn-dco-win",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.3.1",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "0",
              "lessThan": "2.5.9",
              "versionType": "semver"
            }
          ],
          "platforms": [
            "Windows"
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-06-20T07:15:26.367",
  "references": [
    {
      "url": "https://community.openvpn.net/Downloads#openvpn-27_alpha2-released-19-june-2025",
      "tags": [
        "Release Notes"
      ],
      "source": "security@openvpn.net"
    },
    {
      "url": "https://community.openvpn.net/Security%20Announcements/CVE-2025-50054",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@openvpn.net"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@openvpn.net",
      "description": [
        {
          "lang": "en",
          "value": "CWE-122"
        },
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Buffer overflow in OpenVPN ovpn-dco-win version 1.3.0 and earlier and version 2.5.8 and earlier allows a local user process to send a too large control message buffer to the kernel driver resulting in a system crash"
    },
    {
      "lang": "es",
      "value": "El desbordamiento de búfer en OpenVPN ovpn-dco-win versión 1.3.0 y anteriores y versión 2.5.8 y anteriores permite que un proceso de usuario local envíe un búfer de mensaje de control demasiado grande al controlador del kernel, lo que provoca un bloqueo del sistema."
    }
  ],
  "lastModified": "2026-06-17T09:34:33.487",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:openvpn:ovpn-dco-win:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "222FBD46-8E1D-4B75-A15D-4C53FFBA0421",
              "versionEndIncluding": "1.3.0"
            },
            {
              "criteria": "cpe:2.3:a:openvpn:ovpn-dco-win:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2E239D83-CB2D-4352-BB21-93AB68ADB1E1",
              "versionEndIncluding": "2.5.8",
              "versionStartIncluding": "2.4.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@openvpn.net"
}