{
    "id": "CVE-2020-12812",
    "published": "2020-07-24 23:15:12",
    "last_modified": "2026-08-12 05:17:29",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-178",
    "description": "An improper authentication vulnerability in SSL VPN in FortiOS 6.4.0, 6.2.0 to 6.2.3, 6.0.9 and below may result in a user being able to log in successfully without being prompted for the second factor of authentication (FortiToken) if they changed the case of their username.",
    "epss_score": "0.49344",
    "epss_percentile": "0.98853",
    "kev": 1,
    "kev_due": "2022-05-03",
    "has_exploit": 0,
    "updated_at": "2026-09-26 18:26:10",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2022-05-03."
    },
    "products": [
        {
            "vendor": "fortinet",
            "product": "fortios"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2020-12812",
        "date_added": "2021-11-03",
        "due_date": "2022-05-03",
        "vendor": "Fortinet",
        "product": "FortiOS",
        "name": "Fortinet FortiOS SSL VPN Improper Authentication Vulnerability",
        "ransomware": 1
    },
    "exploits": [],
    "refs_list": [
        "https://fortiguard.com/psirt/FG-IR-19-283",
        "https://fortiguard.com/psirt/FG-IR-19-283",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-12812"
    ]
}