{
    "id": "CVE-2021-27198",
    "published": "2021-02-26 23:15:11",
    "last_modified": "2026-06-17 03:44:27",
    "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-434",
    "description": "An issue was discovered in Visualware MyConnection Server before v11.1a. Unauthenticated Remote Code Execution can occur via Arbitrary File Upload in the web service when using a myspeed/sf?filename= URI. This application is written in Java and is thus cross-platform. The Windows installation runs as SYSTEM, which means that exploitation gives one Administrator privileges on the target system.",
    "epss_score": "0.13623",
    "epss_percentile": "0.96372",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-04 18:17:24",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 13.6% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "visualware",
            "product": "myconnection_server"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://packetstormsecurity.com/files/161571/VisualWare-MyConnection-Server-11.x-Remote-Code-Execution.html",
        "http://seclists.org/fulldisclosure/2021/Feb/81",
        "https://myconnectionserver.visualware.com/download.html",
        "https://myconnectionserver.visualware.com/support/newrelease.html",
        "https://www.securifera.com/advisories/cve-2021-27198/",
        "http://packetstormsecurity.com/files/161571/VisualWare-MyConnection-Server-11.x-Remote-Code-Execution.html",
        "http://seclists.org/fulldisclosure/2021/Feb/81",
        "https://myconnectionserver.visualware.com/download.html",
        "https://myconnectionserver.visualware.com/support/newrelease.html",
        "https://www.securifera.com/advisories/cve-2021-27198/"
    ]
}