{
    "id": "CVE-2023-26258",
    "published": "2023-07-03 15:15:10",
    "last_modified": "2026-06-17 05:42:55",
    "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-863",
    "description": "Arcserve UDP through 9.0.6034 allows authentication bypass. The method getVersionInfo at WebServiceImpl/services/FlashServiceImpl leaks the AuthUUID token. This token can be used at /WebServiceImpl/services/VirtualStandbyServiceImpl to obtain a valid session. This session can be used to execute any task as administrator.",
    "epss_score": "0.39773",
    "epss_percentile": "0.98582",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-02 18:17:37",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 39.8% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "arcserve",
            "product": "udp"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://support.arcserve.com/s/article/KB000015720?language=en_US",
        "https://www.arcserve.com/products/arcserve-udp",
        "https://www.mdsec.co.uk/2023/06/cve-2023-26258-remote-code-execution-in-arcserve-udp-backup/",
        "https://support.arcserve.com/s/article/KB000015720?language=en_US",
        "https://www.arcserve.com/products/arcserve-udp",
        "https://www.mdsec.co.uk/2023/06/cve-2023-26258-remote-code-execution-in-arcserve-udp-backup/"
    ]
}