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CVE-2026-42396

Estado: AnalizadaMedia (6.5)—

Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail

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)

Powerdns — Authoritative

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-42396",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-42396",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-21T12:03:13.589644Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@open-xchange.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "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@open-xchange.com",
      "affectedData": [
        {
          "repo": "https://github.com/PowerDNS/pdns",
          "vendor": "PowerDNS",
          "modules": [
            "Catalog Zones"
          ],
          "product": "Authoritative",
          "versions": [
            {
              "status": "affected",
              "version": "4.9.0",
              "lessThan": "4.9.15",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "5.0.0",
              "lessThan": "5.0.5",
              "versionType": "semver"
            }
          ],
          "packageName": "pdns",
          "programFiles": [
            "auth-catalogzone.cc"
          ],
          "collectionURL": "https://repo.powerdns.com/",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-05-21T10:16:25.927",
  "references": [
    {
      "url": "https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-06.html",
      "tags": [
        "Broken Link"
      ],
      "source": "security@open-xchange.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail"
    },
    {
      "lang": "es",
      "value": "Validación insuficiente de los datos de la zona de miembros puede causar que la transferencia de zona de catálogo falle"
    }
  ],
  "lastModified": "2026-07-23T16:10:00.137",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9B985DC6-BCEA-4337-9369-F2F3C6BF2451",
              "versionEndExcluding": "4.9.15",
              "versionStartIncluding": "4.7.0"
            },
            {
              "criteria": "cpe:2.3:a:powerdns:authoritative:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2A4E1802-A1AB-4058-A3DB-E514F6C07E30",
              "versionEndExcluding": "5.0.5",
              "versionStartIncluding": "5.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@open-xchange.com"
}