{
  "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-2019-1023",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2019-1023",
    "idYear": 2019,
    "status": "PUBLISHED",
    "publishedAt": "2019-06-12T13:49:40.000Z",
    "updatedAt": "2025-05-20T17:50:08.170Z",
    "importedAt": "2026-10-24T01:56:08.750Z",
    "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": "Scripting Engine Information Disclosure Vulnerability",
      "summary": "An information disclosure vulnerability exists when the scripting engine does not properly handle objects in memory in Microsoft Edge. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user’s system.\nIn a web-based attack scenario, an attacker could host a website in an attempt to exploit the vulnerability. In addition, compromised websites and websites that accept or host user-provided content could contain specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force a user to view the attacker-controlled content. Instead, an attacker would have to convince a user to take action. For example, an attacker could trick a user into clicking a link that takes the user to the attacker's site.\nThe security update addresses the vulnerability by changing how the scripting engine handles objects in memory.",
      "affected": [
        {
          "vendor": "Microsoft",
          "product": "ChakraCore",
          "platforms": [
            "Unknown"
          ],
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "publication"
            }
          ]
        },
        {
          "vendor": "Microsoft",
          "product": "Microsoft Edge (EdgeHTML-based)",
          "platforms": [
            "Windows 10 Version 1703 for 32-bit Systems",
            "Windows 10 Version 1703 for x64-based Systems",
            "Windows 10 Version 1803 for 32-bit Systems",
            "Windows 10 Version 1803 for x64-based Systems",
            "Windows 10 Version 1803 for ARM64-based Systems",
            "Windows 10 Version 1809 for 32-bit Systems",
            "Windows 10 Version 1809 for x64-based Systems",
            "Windows 10 Version 1809 for ARM64-based Systems",
            "Windows Server 2019",
            "Windows 10 Version 1709 for 32-bit Systems",
            "Windows 10 Version 1709 for x64-based Systems",
            "Windows 10 Version 1709 for ARM64-based Systems",
            "Windows 10 for 32-bit Systems",
            "Windows 10 for x64-based Systems",
            "Windows 10 Version 1607 for 32-bit Systems",
            "Windows 10 Version 1607 for x64-based Systems",
            "Windows Server 2016",
            "Windows 10 Version 1903 for 32-bit Systems",
            "Windows 10 Version 1903 for x64-based Systems",
            "Windows 10 Version 1903 for ARM64-based Systems"
          ],
          "versions": [
            {
              "version": "1.0..0",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "publication"
            }
          ]
        }
      ]
    }
  }
}