Security advisory

{
  "id": "d1ed979f61dd1188957e3907fc5434c097289305d5fe6eb6c1be7cac4d676066",
  "url": "https://osv.dev/vulnerability/CVE-2020-29457",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-29457",
    "summary": "A Privilege Elevation vulnerability in OPC UA .NET Standard Stack 1.4.363.107 could allow a rogue application to establish a secure connection.",
    "evidence": "osv:CVE-2020-29457",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-29457",
      "aliases": [
        "CVE-2020-29457",
        "GHSA-mjww-934m-h4jw"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/opcfoundation/ua-.netstandard",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2e6263e19a9b90b3c53bce2118850244dcf2eb7f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:opcfoundation:ua-.netstandard:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.4.365.10"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.4.365.2",
            "1.4.363.49",
            "1.4.362.42",
            "1.4.361.39",
            "1.4.360.33",
            "1.4.359.31",
            "1.4.358.30",
            "1.4.357.28",
            "1.4.356.27",
            "1.4.355.26",
            "1.04.354.23",
            "1.04.354.21",
            "1.04.353.15",
            "1.03.350"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-29457.json"
          }
        }
      ],
      "modified": "2026-10-20T10:53:14.760302905Z",
      "provider": "osv",
      "references": [
        "https://github.com/OPCFoundation/UA-.NETStandard",
        "https://www.nuget.org/packages/OPCFoundation.NetStandard.Opc.Ua/",
        "https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2020-29457.pdf"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-29457",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384241,
  "published_at": "2021-02-16T20:15:15.707+00:00"
}