Security advisory

{
  "id": "430e77469e20903d1466efd8460edfbe530dcadd1f77025ac65e805078d3e2bb",
  "url": "https://osv.dev/vulnerability/CVE-2019-19135",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2019-19135",
    "summary": "In OPC Foundation OPC UA .NET Standard codebase 1.4.357.28, servers do not create sufficiently random numbers in OPCFoundation.NetStandard.Opc.Ua before 1.4.359.31, which allows man in the middle attackers to reuse encrypted user credentials sent over the network.",
    "evidence": "osv:CVE-2019-19135",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2019-19135",
      "aliases": [
        "CVE-2019-19135",
        "GHSA-pq4w-qm9g-qx68"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/opcfoundation/ua-.netstandard",
              "type": "GIT",
              "events": [
                {
                  "introduced": "28614a037ca2972ed5c161df8357c8f02f5b38ea"
                },
                {
                  "last_affected": "28614a037ca2972ed5c161df8357c8f02f5b38ea"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:opcfoundation:ua-.netstandard:1.4.357.28:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.4.357.28"
                      },
                      {
                        "last_affected": "1.4.357.28"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.4.357.28"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19135.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:34.759172724Z",
      "provider": "osv",
      "references": [
        "https://opcfoundation.org/security-bulletins/",
        "https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2019-19135.pdf"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:opcfoundation:netstandard.opc.ua:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "opcfoundation:netstandard.opc.ua",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "1.4.359.31"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2019-19135",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 433611,
  "published_at": "2020-03-16T16:15:11.937+00:00"
}