cve-2026-83347

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Oracle Database Server",
          "vendor": "Oracle Corporation",
          "versions": [
            {
              "lessThanOrEqual": "23.26.3",
              "status": "affected",
              "version": "23.4.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "secalert_us@oracle.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Vulnerability in the Oracle Net Services component of Oracle Database Server.  Supported versions that are affected are 23.4.0-23.26.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via TCPS to compromise Oracle Net Services.  Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Net Services. CVSS 3.1 Base Score 6.5 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)."
    }
  ],
  "id": "CVE-2026-83347",
  "lastModified": "2026-09-18T17:17:03.790",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "secalert_us@oracle.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-83347",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-18T16:13:32.770801Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-15T20:18:48.133",
  "references": [
    {
      "source": "secalert_us@oracle.com",
      "url": "https://www.oracle.com/security-alerts/cspusep2026.html"
    }
  ],
  "sourceIdentifier": "secalert_us@oracle.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}