{
    "id": "CVE-2021-40870",
    "published": "2021-09-13 08:15:13",
    "last_modified": "2026-06-17 04:07:34",
    "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-23",
    "description": "An issue was discovered in Aviatrix Controller 6.x before 6.5-1804.1922. Unrestricted upload of a file with a dangerous type is possible, which allows an unauthenticated user to execute arbitrary code via directory traversal.",
    "epss_score": "0.93019",
    "epss_percentile": "0.99830",
    "kev": 1,
    "kev_due": "2022-02-01",
    "has_exploit": 0,
    "updated_at": "2026-09-26 18:28:07",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2022-02-01."
    },
    "products": [
        {
            "vendor": "aviatrix",
            "product": "controller"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2021-40870",
        "date_added": "2022-01-18",
        "due_date": "2022-02-01",
        "vendor": "Aviatrix",
        "product": "Aviatrix Controller",
        "name": "Aviatrix Controller Unrestricted Upload of File",
        "ransomware": 0
    },
    "exploits": [],
    "refs_list": [
        "http://packetstormsecurity.com/files/164461/Aviatrix-Controller-6.x-Path-Traversal-Code-Execution.html",
        "https://docs.aviatrix.com/HowTos/UCC_Release_Notes.html#security-note-9-11-2021",
        "https://wearetradecraft.com/advisories/tc-2021-0002/",
        "http://packetstormsecurity.com/files/164461/Aviatrix-Controller-6.x-Path-Traversal-Code-Execution.html",
        "https://docs.aviatrix.com/HowTos/UCC_Release_Notes.html#security-note-9-11-2021",
        "https://wearetradecraft.com/advisories/tc-2021-0002/",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-40870"
    ]
}