{
    "id": "CVE-2011-2039",
    "published": "2011-06-02 19:55:04",
    "last_modified": "2026-06-16 23:30:37",
    "cvss_score": "7.6",
    "cvss_severity": "HIGH",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:H/Au:N/C:C/I:C/A:C",
    "cwe": "CWE-20",
    "description": "The helper application in Cisco AnyConnect Secure Mobility Client (formerly AnyConnect VPN Client) before 2.3.185 on Windows, and on Windows Mobile, downloads a client executable file (vpndownloader.exe) without verifying its authenticity, which allows remote attackers to execute arbitrary code via the url property to a certain ActiveX control in vpnweb.ocx, aka Bug ID CSCsy00904.",
    "epss_score": "0.69959",
    "epss_percentile": "0.99356",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:18:03",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "cisco",
            "product": "anyconnect_secure_mobility_client"
        },
        {
            "vendor": "microsoft",
            "product": "windows"
        },
        {
            "vendor": "microsoft",
            "product": "windows_mobile"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "17366",
            "title": "Cisco AnyConnect VPN Client - ActiveX URL Property Download and Execute (Metasploit)",
            "date": "2011-06-06",
            "url": "https://www.exploit-db.com/exploits/17366"
        }
    ],
    "refs_list": [
        "http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=909",
        "http://osvdb.org/72714",
        "http://securityreason.com/securityalert/8272",
        "http://www.cisco.com/en/US/products/products_security_advisory09186a0080b80123.shtml",
        "http://www.kb.cert.org/vuls/id/490097",
        "http://www.securitytracker.com/id?1025591",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/67739",
        "http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=909",
        "http://osvdb.org/72714",
        "http://securityreason.com/securityalert/8272",
        "http://www.cisco.com/en/US/products/products_security_advisory09186a0080b80123.shtml",
        "http://www.kb.cert.org/vuls/id/490097",
        "http://www.securitytracker.com/id?1025591",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/67739"
    ]
}