{
  "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-2020-15707",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2020-15707",
    "idYear": 2020,
    "status": "PUBLISHED",
    "publishedAt": "2020-07-29T17:45:34.577Z",
    "updatedAt": "2024-09-17T03:07:49.301Z",
    "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": "GRUB2 contained integer overflows when handling the initrd command, leading to a heap-based buffer overflow.",
      "summary": "Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2 upstream), leading to a heap-based buffer overflow. These could be triggered by an extremely large number of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files on any architecture. An attacker could use this to execute arbitrary code and bypass UEFI Secure Boot restrictions. This issue affects GRUB2 version 2.04 and prior versions.",
      "affected": [
        {
          "vendor": "Ubuntu",
          "product": "grub2 in Ubuntu",
          "versions": [
            {
              "version": "20.04 LTS",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "2.04-1ubuntu26.1"
            },
            {
              "version": "18.04 LTS",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "2.02-2ubuntu8.16"
            },
            {
              "version": "16.04 LTS",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "2.02~beta2-36ubuntu3.26"
            },
            {
              "version": "14.04 ESM",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "2.02~beta2-9ubuntu1.20"
            }
          ]
        }
      ]
    }
  }
}