{
  "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-2022-4020",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-4020",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2022-11-28T13:00:01.057Z",
    "updatedAt": "2025-04-14T18:16:59.908Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "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": "Acer Aspire BIOS vulnerability",
      "summary": "Vulnerability in the HQSwSmiDxe DXE driver on some consumer Acer Notebook devices may allow an attacker with elevated privileges to modify UEFI Secure Boot settings by modifying an NVRAM variable.\n\n\n",
      "affected": [
        {
          "vendor": "Acer",
          "product": "Aspire A315-22",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1.04",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.11"
            }
          ]
        },
        {
          "vendor": "Acer",
          "product": "Aspire A115-21",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1.04",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.11"
            }
          ]
        },
        {
          "vendor": "Acer",
          "product": "Aspire A315-22G",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1.04",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.11"
            }
          ]
        },
        {
          "vendor": "Acer",
          "product": "Extensa EX215-21",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1.04",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.11"
            }
          ]
        },
        {
          "vendor": "Acer",
          "product": "Extensa EX215-21G",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1.04",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.11"
            }
          ]
        }
      ]
    }
  }
}