{
    "id": "CVE-2025-26399",
    "published": "2025-09-23 05:15:35",
    "last_modified": "2026-06-17 09:01:42",
    "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": "SolarWinds Web Help Desk was found to be susceptible to an unauthenticated AjaxProxy deserialization remote code execution vulnerability that, if exploited, would allow an attacker to run commands on the host machine. This vulnerability is a patch bypass of CVE-2024-28988, which in turn is a patch bypass of CVE-2024-28986.",
    "epss_score": "0.89500",
    "epss_percentile": "0.99783",
    "kev": 1,
    "kev_due": "2026-03-12",
    "has_exploit": 0,
    "updated_at": "2026-09-26 18:39:23",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2026-03-12."
    },
    "products": [
        {
            "vendor": "solarwinds",
            "product": "web_help_desk"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2025-26399",
        "date_added": "2026-03-09",
        "due_date": "2026-03-12",
        "vendor": "SolarWinds",
        "product": "Web Help Desk",
        "name": "SolarWinds Web Help Desk Deserialization of Untrusted Data Vulnerability",
        "ransomware": 1
    },
    "exploits": [],
    "refs_list": [
        "https://documentation.solarwinds.com/en/success_center/whd/content/release_notes/whd_12-8-7-hotfix-1_release_notes.htm",
        "https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-26399",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-26399",
        "https://www.microsoft.com/en-us/security/blog/2026/02/06/active-exploitation-solarwinds-web-help-desk/"
    ]
}