{
    "id": "CVE-2025-59287",
    "published": "2025-10-14 17:16:11",
    "last_modified": "2026-06-17 09:45:52",
    "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-502",
    "description": "Deserialization of untrusted data in Windows Server Update Service allows an unauthorized attacker to execute code over a network.",
    "epss_score": "0.99980",
    "epss_percentile": "0.99981",
    "kev": 1,
    "kev_due": "2025-11-14",
    "has_exploit": 0,
    "updated_at": "2026-09-26 18:39:41",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2025-11-14."
    },
    "products": [
        {
            "vendor": "microsoft",
            "product": "windows_server_2012"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2016"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2019"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2022"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2022_23h2"
        },
        {
            "vendor": "microsoft",
            "product": "windows_server_2025"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2025-59287",
        "date_added": "2025-10-24",
        "due_date": "2025-11-14",
        "vendor": "Microsoft",
        "product": "Windows",
        "name": "Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data Vulnerability",
        "ransomware": 0
    },
    "exploits": [],
    "refs_list": [
        "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59287",
        "https://hawktrace.com/blog/CVE-2025-59287",
        "https://www.bleepingcomputer.com/news/security/cisa-orders-feds-to-patch-windows-server-wsus-flaw-exploited-in-attacks/",
        "https://www.vicarius.io/vsociety/posts/cve-2025-59287-detection-script-rce-vulnerability-in-windows-server-update-service",
        "https://www.vicarius.io/vsociety/posts/cve-2025-59287-mitigation-script-rce-vulnerability-in-windows-server-update-service",
        "https://gist.github.com/hawktrace/880b54fb9c07ddb028baaae401bd3951",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-59287"
    ]
}