CVE-2025-12818

{
  "id": "CVE-2025-12818",
  "sourceIdentifier": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
  "published": "2025-11-13T13:15:45.313",
  "lastModified": "2026-10-19T13:10:00.110",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Integer wraparound in multiple PostgreSQL libpq client library functions allows an application input provider or network peer to cause libpq to undersize an allocation and write out-of-bounds by hundreds of megabytes.  This results in a segmentation fault for the application using libpq.  Versions before PostgreSQL 18.1, 17.7, 16.11, 15.15, 14.20, and 13.23 are affected."
    },
    {
      "lang": "es",
      "value": "El desbordamiento de enteros en múltiples funciones de la biblioteca cliente libpq de PostgreSQL permite que un proveedor de entrada de aplicación o un par de red provoque que libpq asigne un tamaño insuficiente y escriba fuera de los límites por cientos de megabytes. Esto resulta en un fallo de segmentación para la aplicación que utiliza libpq. Las versiones anteriores a PostgreSQL 18.1, 17.7, 16.11, 15.15, 14.20 y 13.23 están afectadas."
    }
  ],
  "affected": [
    {
      "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "PostgreSQL",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "18",
              "lessThan": "18.1",
              "versionType": "rpm",
              "status": "affected"
            },
            {
              "version": "17",
              "lessThan": "17.7",
              "versionType": "rpm",
              "status": "affected"
            },
            {
              "version": "16",
              "lessThan": "16.11",
              "versionType": "rpm",
              "status": "affected"
            },
            {
              "version": "15",
              "lessThan": "15.15",
              "versionType": "rpm",
              "status": "affected"
            },
            {
              "version": "14",
              "lessThan": "14.20",
              "versionType": "rpm",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "13.23",
              "versionType": "rpm",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-11-13T13:59:26.597610Z",
          "id": "CVE-2025-12818",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.postgresql.org/support/security/CVE-2025-12818/",
      "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"
    }
  ]
}