CVE-2025-30192

Estado: AplazadaAlta (7.5)—

An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success higher than non-ECS enabled queries.

The updated version include various mitigations against spoofing attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the received answers.

The most strict mitigation done when the new setting outgoing.edns_subnet_harden (old style name edns-subnet-harden) is enabled.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.24%
Percentil entre todas las CVEs puntuadas: 14
Fecha de la puntuación: 6/10/2026

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.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access85 %
Impacto principalT1499.004 Application or System Exploitationimpact75 %

Vector CVSS AV:N/AC:L/PR:N/UI:N indica acceso remoto sin privilegios (T1190). El spoofing de respuestas DNS causa degradación de servicio en queries ECS del Recursor.

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

Filter Network Traffic Vulnerability Scanning Privileged Account Management Network Segmentation Limit Access to Resource Over Network Application Isolation and Sandboxing

Tecnologías afectadas (1)

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

Powerdns — Recursor^AI

CWE

CWE-345

Referencias

https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-04.html

JSON original (NVD)

Mostrar

{
  "id": "CVE-2025-30192",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-30192",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-07-21T13:05:23.317665Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@open-xchange.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@open-xchange.com",
      "affectedData": [
        {
          "repo": "https://github.com/PowerDNS/pdns",
          "vendor": "PowerDNS",
          "modules": [
            "resolver"
          ],
          "product": "Recursor",
          "versions": [
            {
              "status": "unaffected",
              "version": "5.0.12",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.1.6",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.2.4",
              "versionType": "semver"
            }
          ],
          "packageName": "pdns-recursor",
          "programFiles": [
            "lwres.cc"
          ],
          "collectionURL": "https://repo.powerdns.com/",
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-07-21T13:15:26.740",
  "references": [
    {
      "url": "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-04.html",
      "source": "security@open-xchange.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@open-xchange.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-345"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success higher than non-ECS enabled queries.\n\nThe updated version include various mitigations against spoofing attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the received answers.\n\nThe most strict mitigation done when the new setting outgoing.edns_subnet_harden (old style name edns-subnet-harden) is enabled."
    },
    {
      "lang": "es",
      "value": "Un atacante que suplante las respuestas a las solicitudes con ECS habilitadas enviadas por el Recursor tiene mayor probabilidad de éxito que las consultas sin ECS habilitadas. La versión actualizada incluye varias mitigaciones contra intentos de suplantación de consultas con ECS habilitadas mediante el encadenamiento de solicitudes con ECS habilitadas y una validación más estricta de las respuestas recibidas. La mitigación más estricta se realiza cuando se habilita la nueva configuración outgoing.edns_subnet_harden (antiguamente edns-subnet-harden)."
    }
  ],
  "lastModified": "2026-06-17T09:08:19.570",
  "sourceIdentifier": "security@open-xchange.com"
}