{
    "id": "CVE-2023-6549",
    "published": "2024-01-17 21:15:11",
    "last_modified": "2026-06-17 06:50:58",
    "cvss_score": "8.2",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
    "cwe": "CWE-119",
    "description": "Improper Restriction of Operations within the Bounds of a Memory Buffer in NetScaler ADC and NetScaler Gateway allows Unauthenticated Denial of Service and Out-Of-Bounds Memory Read",
    "epss_score": "0.57633",
    "epss_percentile": "0.99055",
    "kev": 1,
    "kev_due": "2024-02-07",
    "has_exploit": 0,
    "updated_at": "2026-09-26 18:33:35",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2024-02-07."
    },
    "products": [
        {
            "vendor": "citrix",
            "product": "netscaler_application_delivery_controller"
        },
        {
            "vendor": "citrix",
            "product": "netscaler_gateway"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2023-6549",
        "date_added": "2024-01-17",
        "due_date": "2024-02-07",
        "vendor": "Citrix",
        "product": "NetScaler ADC and NetScaler Gateway",
        "name": "Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability",
        "ransomware": 0
    },
    "exploits": [],
    "refs_list": [
        "https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549",
        "https://support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6549"
    ]
}