{
  "crds_version": "0.1",
  "kind": "base",
  "id": "crds:cve-2025-47827",
  "revision": 1,
  "title": "IGEL OS — Secure Boot bypassed through an unverified image",
  "summary": "The thin client operating system (IGEL OS) before 11 checks the signature on its flash driver module incorrectly, so a crafted root filesystem can be mounted from an unverified image and the Secure Boot chain no longer holds.",
  "source_type": "cve",
  "severity": "medium",
  "cvss": {
    "score": 4.6,
    "vector": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
    "version": "3.1"
  },
  "epss": 0.04927,
  "exploitation": {
    "known_exploited": true,
    "exploit_available": true,
    "attack_complexity": "low",
    "kev_added": "2025-10-14",
    "prerequisites": "The ability to supply a crafted filesystem image to the device."
  },
  "remediation": {
    "patch_available": true
  },
  "kill_chain": "defense_evasion",
  "recommended_action": "Upgrade to IGEL OS 11 or later now; on endpoints that cannot move, treat boot attestation coming from them as unreliable.",
  "confidence": "high",
  "provenance": [
    {
      "fields": [
        "cvss",
        "exploitation.attack_complexity",
        "exploitation.exploit_available",
        "references",
        "published_at"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2025-47827",
      "retrieved_at": "2026-09-24T08:51:39.744Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "exploitation.known_exploited",
        "exploitation.kev_added"
      ],
      "source": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "retrieved_at": "2026-09-24T08:51:39.744Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "epss"
      ],
      "source": "https://api.first.org/data/v1/epss?cve=CVE-2025-47827",
      "retrieved_at": "2026-09-24T08:51:39.744Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "title",
        "summary",
        "severity",
        "remediation",
        "mitre_attack",
        "kill_chain",
        "recommended_action",
        "confidence",
        "tags",
        "exploitation.prerequisites"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2025-47827",
      "retrieved_at": "2026-09-24T08:51:39.744Z",
      "confidence": "high",
      "extractor": "claude-code"
    }
  ],
  "references": [
    {
      "type": "cve",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-47827",
      "label": "NVD record"
    },
    {
      "type": "cisa",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "label": "CISA Known Exploited Vulnerabilities catalog"
    },
    {
      "type": "exploit",
      "url": "https://github.com/Zedeldi/CVE-2025-47827"
    },
    {
      "type": "writeup",
      "url": "https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-47827"
    }
  ],
  "published_at": "2025-06-05T14:15:32.263Z",
  "issued_at": "2026-09-24T08:51:39.744Z",
  "tags": [
    "igel",
    "thin-client",
    "secure-boot",
    "kev"
  ]
}