{
  "id": "CVE-2019-1429",
  "url": "https://spydr.io/cve/CVE-2019-1429",
  "published": "2019-11-12T19:15:14.770Z",
  "modified": "2026-06-17T02:28:35.873Z",
  "score": 7.5,
  "severity": "high",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.7729,
  "epss_percentile": 0.99547,
  "exploited": true,
  "kev": {
    "added": "2021-11-03",
    "due": "2022-05-03",
    "action": "Apply updates per vendor instructions.",
    "ransomware": "Unknown",
    "name": "Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability",
    "notes": "https://nvd.nist.gov/vuln/detail/CVE-2019-1429"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "Microsoft"
  ],
  "products": [
    "Microsoft Internet Explorer 9",
    "Microsoft Internet Explorer 11",
    "Microsoft Internet Explorer 11 on Windows Server 2012",
    "Microsoft Internet Explorer 11 on Windows 10 Version 1903 for 32-bit Systems",
    "Microsoft Internet Explorer 11 on Windows 10 Version 1903 for x64-based Systems",
    "Microsoft Internet Explorer 11 on Windows 10 Version 1903 for ARM64-based Systems",
    "Microsoft Internet Explorer 10"
  ],
  "cwes": [
    "CWE-416",
    "CWE-787"
  ],
  "description": "A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1426, CVE-2019-1427, CVE-2019-1428.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 7.5,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/155433/Microsoft-Internet-Explorer-Use-After-Free.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1429",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1429",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2019-1429",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}