{
  "id": "CVE-2022-42475",
  "url": "https://spydr.io/cve/CVE-2022-42475",
  "published": "2023-01-02T09:15:09.490Z",
  "modified": "2026-06-17T05:04:59.630Z",
  "score": 9.8,
  "severity": "critical",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.99474,
  "epss_percentile": 0.99943,
  "exploited": true,
  "kev": {
    "added": "2022-12-13",
    "due": "2023-01-03",
    "action": "Apply updates per vendor instructions.",
    "ransomware": "Known",
    "name": "Fortinet FortiOS Heap-Based Buffer Overflow Vulnerability",
    "notes": "https://www.fortiguard.com/psirt/FG-IR-22-398; https://nvd.nist.gov/vuln/detail/CVE-2022-42475"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "Fortinet"
  ],
  "products": [
    "Fortinet FortiProxy",
    "Fortinet FortiOS"
  ],
  "cwes": [
    "CWE-197",
    "CWE-787"
  ],
  "description": "A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN 7.2.0 through 7.2.2, 7.0.0 through 7.0.8, 6.4.0 through 6.4.10, 6.2.0 through 6.2.11, 6.0.15 and earlier and FortiProxy SSL-VPN 7.2.0 through 7.2.1, 7.0.7 and earlier may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://fortiguard.com/psirt/FG-IR-22-398",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-42475",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42475",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}