{
    "id": "CVE-2019-16516",
    "published": "2020-01-23 18:15:13",
    "last_modified": "2026-06-17 02:22:20",
    "cvss_score": "5.3",
    "cvss_severity": "MEDIUM",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
    "cwe": "CWE-203",
    "description": "An issue was discovered in ConnectWise Control (formerly known as ScreenConnect) 19.3.25270.7185. There is a user enumeration vulnerability, allowing an unauthenticated attacker to determine with certainty if an account exists for a given username.",
    "epss_score": "0.19097",
    "epss_percentile": "0.97232",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-27 18:17:23",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "connectwise",
            "product": "control"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "50618",
            "title": "ConnectWise Control 19.2.24707 - Username Enumeration",
            "date": "2022-01-05",
            "url": "https://www.exploit-db.com/exploits/50618"
        }
    ],
    "refs_list": [
        "http://packetstormsecurity.com/files/165432/ConnectWise-Control-19.2.24707-Username-Enumeration.html",
        "https://blog.huntresslabs.com/validating-the-bishop-fox-findings-in-connectwise-control-9155eec36a34",
        "https://know.bishopfox.com/advisories",
        "https://know.bishopfox.com/advisories/connectwise-control",
        "https://www.crn.com/news/managed-services/connectwise-control-msp-security-vulnerabilities-are-severe-bishop-fox",
        "https://www.crn.com/slide-shows/managed-services/connectwise-control-attack-chain-exploit-20-questions-for-security-researcher-bishop-fox",
        "http://packetstormsecurity.com/files/165432/ConnectWise-Control-19.2.24707-Username-Enumeration.html",
        "https://blog.huntresslabs.com/validating-the-bishop-fox-findings-in-connectwise-control-9155eec36a34",
        "https://know.bishopfox.com/advisories",
        "https://know.bishopfox.com/advisories/connectwise-control",
        "https://www.crn.com/news/managed-services/connectwise-control-msp-security-vulnerabilities-are-severe-bishop-fox",
        "https://www.crn.com/slide-shows/managed-services/connectwise-control-attack-chain-exploit-20-questions-for-security-researcher-bishop-fox"
    ]
}