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CVE-2026-6474

Estado: AnalizadaMedia (4.3)—

Externally-controlled format string in PostgreSQL timeofday() function allows an attacker to retrieve portions of server memory, via crafted timezone zones. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

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)

Postgresql — Postgresql

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-6474",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-6474",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-14T15:30:17.967244Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "PostgreSQL",
          "versions": [
            {
              "status": "affected",
              "version": "18",
              "lessThan": "18.4",
              "versionType": "rpm"
            },
            {
              "status": "affected",
              "version": "17",
              "lessThan": "17.10",
              "versionType": "rpm"
            },
            {
              "status": "affected",
              "version": "16",
              "lessThan": "16.14",
              "versionType": "rpm"
            },
            {
              "status": "affected",
              "version": "15",
              "lessThan": "15.18",
              "versionType": "rpm"
            },
            {
              "status": "affected",
              "version": "0",
              "lessThan": "14.23",
              "versionType": "rpm"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-05-14T14:16:24.997",
  "references": [
    {
      "url": "https://www.postgresql.org/support/security/CVE-2026-6474/",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
      "description": [
        {
          "lang": "en",
          "value": "CWE-134"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Externally-controlled format string in PostgreSQL timeofday() function allows an attacker to retrieve portions of server memory, via crafted timezone zones.  Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected."
    }
  ],
  "lastModified": "2026-06-17T11:00:51.327",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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            },
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          "operator": "OR"
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  "sourceIdentifier": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007"
}