{
  "id": "CVE-2022-37012",
  "sourceIdentifier": "zdi-disclosures@trendmicro.com",
  "published": "2023-03-29T19:15:12.827",
  "lastModified": "2024-11-21T07:14:16.950",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Unified Automation OPC UA C++ Demo Server 1.7.6-537. Authentication is not required to exploit this vulnerability. The specific flaw exists within the OpcUa_SecureListener_ProcessSessionCallRequest method. A crafted OPC UA message can force the server to incorrectly update a reference count. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-16927."
    }
  ],
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          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 3.9,
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          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
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      "url": "https://documentation.unified-automation.com/uasdkcpp/1.7.7/CHANGELOG.txt",
      "source": "zdi-disclosures@trendmicro.com",
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}