{
  "crds_version": "0.1",
  "kind": "base",
  "id": "crds:cve-2022-39952",
  "revision": 1,
  "title": "Fortinet FortiNAC — External Control of a File Path",
  "summary": "Fortinet's network access controller lets a request choose where a file is written, which an unauthenticated attacker turns into code execution on the appliance.",
  "source_type": "cve",
  "severity": "critical",
  "cvss": {
    "score": 9.8,
    "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "version": "3.1"
  },
  "epss": 0.99809,
  "exploitation": {
    "known_exploited": false,
    "exploit_available": false,
    "attack_complexity": "low",
    "prerequisites": "Network access to the appliance"
  },
  "remediation": {
    "patch_available": true
  },
  "mitre_attack": [
    "T1190"
  ],
  "kill_chain": "initial_access",
  "recommended_action": "Upgrade FortiNAC per Fortinet's advisory, and check the appliance for files written while it was reachable.",
  "confidence": "medium",
  "provenance": [
    {
      "fields": [
        "cvss",
        "exploitation.attack_complexity",
        "exploitation.exploit_available",
        "references",
        "published_at"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2022-39952",
      "retrieved_at": "2026-08-07T16:59:03.733Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "epss"
      ],
      "source": "https://api.first.org/data/v1/epss?cve=CVE-2022-39952",
      "retrieved_at": "2026-08-07T16:59:03.733Z",
      "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-2022-39952",
      "retrieved_at": "2026-08-07T16:59:03.733Z",
      "confidence": "high",
      "extractor": "claude-code"
    }
  ],
  "references": [
    {
      "type": "cve",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-39952",
      "label": "NVD record"
    },
    {
      "type": "vendor_advisory",
      "url": "https://fortiguard.com/psirt/FG-IR-22-300"
    }
  ],
  "published_at": "2023-02-16T19:15:13.060Z",
  "issued_at": "2026-08-07T16:59:03.733Z",
  "tags": [
    "fortinet",
    "network-access-control",
    "file-write"
  ]
}