{
    "id": "CVE-2011-2882",
    "published": "2011-07-21 23:55:04",
    "last_modified": "2026-06-16 23:32:10",
    "cvss_score": "9.3",
    "cvss_severity": "HIGH",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
    "cwe": "CWE-119",
    "description": "Stack-based buffer overflow in the NSEPA.NsepaCtrl.1 ActiveX control in nsepa.ocx in Citrix Access Gateway Enterprise Edition 8.1 before 8.1-67.7, 9.0 before 9.0-70.5, and 9.1 before 9.1-96.4 allows remote attackers to execute arbitrary code via crafted HTTP header data.",
    "epss_score": "0.56368",
    "epss_percentile": "0.99026",
    "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": "citrix",
            "product": "access_gateway"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "17762",
            "title": "Citrix Gateway - ActiveX Control Stack Buffer Overflow (Metasploit)",
            "date": "2011-08-31",
            "url": "https://www.exploit-db.com/exploits/17762"
        }
    ],
    "refs_list": [
        "http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=929",
        "http://securityreason.com/securityalert/8358",
        "http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=929",
        "http://securityreason.com/securityalert/8358"
    ]
}