{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000147.html",
  "dc:date": "2026-10-14T17:37+09:00",
  "dcterms:issued": "2026-10-14T17:37+09:00",
  "dcterms:modified": "2026-10-14T17:37+09:00",
  "description": "Multiple smartphones provided by Rakuten Mobile, Inc. utilize AOSP test keys for their Android Verified Boot (AVB) functionality.\u003ca href=\u0027https://cwe.mitre.org/data/definitions/1391.html\u0027 target=\u0027_blank\u0027\u003e\u003c/a\u003e\u003cul\u003e\u003cli\u003eUse of Weak Credentials (CWE-1391) - CVE-2026-107153\u003c/li\u003e\u003c/ul\u003eMasayoshi Matsubara reported this vulnerability to IPA.\r\nJPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000147.html",
  "sec:cpe": [
    {
      "#text": "cpe:/h:rakuten:rakuten_bigs",
      "@product": "Rakuten BIGs",
      "@vendor": "Rakuten Mobile, Inc.",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/h:rakuten:rakuten_hand",
      "@product": "Rakuten Hand",
      "@vendor": "Rakuten Mobile, Inc.",
      "@version": "2.2"
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    {
      "#text": "cpe:/h:rakuten:rakuten_hand_5g",
      "@product": "Rakuten Hand 5G",
      "@vendor": "Rakuten Mobile, Inc.",
      "@version": "2.2"
    },
    {
      "#text": "cpe:/h:rakuten:rakuten_mini",
      "@product": "Rakuten Mini",
      "@vendor": "Rakuten Mobile, Inc.",
      "@version": "2.2"
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    "@severity": "Medium",
    "@type": "Base",
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    "@version": "3.0"
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  "sec:identifier": "JVNDB-2026-000147",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN47427200/index.html",
      "@id": "JVN#47427200",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-107153",
      "@id": "CVE-2026-107153",
      "@source": "CVE"
    },
    {
      "#text": "https://www.android-device-security.org/publications/",
      "@id": "AVBTestKeyInTheWild: Bypassing Android Verified Boot Using A Firmware Supply Chain Vulnerability on Locked Devices",
      "@source": "Related document"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "Multiple Rakuten Mobile smartphones shipped with a known private test key for Android Verified Boot"
}

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