{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2020-27263",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2020-27263",
    "idYear": 2020,
    "status": "PUBLISHED",
    "publishedAt": "2021-01-13T23:30:08.000Z",
    "updatedAt": "2024-08-04T16:11:36.407Z",
    "importedAt": "2026-10-24T01:56:17.081Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": null,
      "summary": "KEPServerEX: v6.0 to v6.9, ThingWorx Kepware Server: v6.8 and v6.9, ThingWorx Industrial Connectivity: All versions, OPC-Aggregator: All versions, Rockwell Automation KEPServer Enterprise, GE Digital Industrial Gateway Server: v7.68.804 and v7.66, Software Toolbox TOP Server: All 6.x versions, are vulnerable to a heap-based buffer overflow. Opening a specifically crafted OPC UA message could allow an attacker to crash the server and potentially leak data.",
      "affected": [
        {
          "vendor": "n/a",
          "product": "PTC Kepware KEPServerEX",
          "versions": [
            {
              "version": "v6.0 to v6.9",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "n/a",
          "product": "ThingWorx Kepware Server",
          "versions": [
            {
              "version": "v6.8 and v6.9",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "n/a",
          "product": "ThingWorx Industrial Connectivity",
          "versions": [
            {
              "version": "All versions",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "n/a",
          "product": "OPC-Aggregator",
          "versions": [
            {
              "version": "All versions",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "n/a",
          "product": "Rockwell Automation KEPServer Enterprise",
          "versions": [
            {
              "version": "All versions",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "n/a",
          "product": "GE Digital Industrial Gateway Server",
          "versions": [
            {
              "version": "v7.68.804",
              "status": "affected"
            },
            {
              "version": "v7.66",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "n/a",
          "product": "Software Toolbox TOP Server",
          "versions": [
            {
              "version": "All 6.x versions",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}