{
  "id": "CVE-2023-28831",
  "sourceIdentifier": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
  "published": "2023-09-12T10:15:27.230",
  "lastModified": "2023-09-12T11:52:00.047",
  "vulnStatus": "Awaiting Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "The ANSI C OPC UA SDK contains an integer overflow vulnerability that could cause the application to run into an infinite loop during certificate validation.\r\n\r\nThis could allow an unauthenticated remote attacker to create a denial of service condition by sending a specially crafted certificate."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-711309.pdf",
      "source": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77"
    }
  ]
}