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CVE-2025-3927

Estado: AnalizadaCrítica (9.8)—

Digigram's PYKO-OUT audio-over-IP (AoIP) web-server does not require a password by default, allowing any attacker with the target IP address to connect and compromise the device, potentially pivoting to connected network or hardware devices.

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.

Servidor web expuesto en red sin autenticación (AV:N, PR:N, UI:N); vector CVSS crítico con impacto C/I/A máximos. Permite acceso no autorizado a la aplicación y ejecución de comandos en el dispositivo AoIP.

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

Privileged Account ManagementApplication Developer GuidanceActive Directory ConfigurationVulnerability ScanningUser TrainingUser Account Management

Tecnologías afectadas (1)

Digigram — Pyko-out

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-3927",
  "cveTags": [
    {
      "tags": [
        "unsupported-when-assigned"
      ],
      "sourceIdentifier": "cret@cert.org"
    }
  ],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-3927",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-05-12T15:54:11.503148Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cret@cert.org",
      "affectedData": [
        {
          "vendor": "Digigram",
          "product": "PYKO-OUT",
          "versions": [
            {
              "status": "affected",
              "version": "1.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2025-05-02T15:15:49.017",
  "references": [
    {
      "url": "https://www.digigram.com/download/pyko-out-user-manual-en-jan-2019/",
      "tags": [
        "Product"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "https://www.kb.cert.org/vuls/id/360686",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Digigram's PYKO-OUT audio-over-IP (AoIP) web-server does not require a password by default, allowing any attacker with the target IP address to connect and compromise the device, potentially pivoting to connected network or hardware devices."
    },
    {
      "lang": "es",
      "value": "El servidor web de audio sobre IP (AoIP) PYKO-OUT de Digigram no requiere una contraseña de manera predeterminada, lo que permite que cualquier atacante con la dirección IP de destino se conecte y comprometa el dispositivo, recurriendo potencialmente a dispositivos de hardware o de red conectados."
    }
  ],
  "lastModified": "2026-06-17T09:20:56.457",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:digigram:pyko-out:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0DE1AE15-833F-4E8C-9A8D-621552D371B7"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cret@cert.org"
}