{
  "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-2026-82623",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-82623",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-31T06:15:08.682Z",
    "updatedAt": "2026-08-31T16:24:19.013Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "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": "open62541 History Backend ua_history_data_backend_memory.c UA_DataValue_backend_copyRange use after free",
      "summary": "A vulnerability was detected in open62541 up to 1.5.5. Affected by this vulnerability is the function UA_DataValue_backend_copyRange of the file plugins/historydata/ua_history_data_backend_memory.c of the component History Backend. The manipulation results in use after free. The attack can be launched remotely. The exploit is now public and may be used. The project closed the issue report, stating that this is not the official way to report a security vulnerability.",
      "affected": [
        {
          "vendor": "n/a",
          "product": "open62541",
          "versions": [
            {
              "version": "1.5.0",
              "status": "affected"
            },
            {
              "version": "1.5.1",
              "status": "affected"
            },
            {
              "version": "1.5.2",
              "status": "affected"
            },
            {
              "version": "1.5.3",
              "status": "affected"
            },
            {
              "version": "1.5.4",
              "status": "affected"
            },
            {
              "version": "1.5.5",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}