{
    "id": "CVE-2026-26335",
    "published": "2026-02-13 21:16:52",
    "last_modified": "2026-06-17 10:26:06",
    "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-321",
    "description": "Calero VeraSMART versions prior to 2022 R1 use static ASP.NET/IIS machineKey values configured for the VeraSMART web application and stored in C:\\\\Program Files (x86)\\\\Veramark\\\\VeraSMART\\\\WebRoot\\\\web.config. An attacker who obtains these keys can craft a valid ASP.NET ViewState payload that passes integrity validation and is accepted by the application, resulting in server-side deserialization and remote code execution in the context of the IIS application.",
    "epss_score": "0.02595",
    "epss_percentile": "0.84718",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-28 18:17:56",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "calero",
            "product": "verasmart"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "52540",
            "title": "Repetier-Server 1.4.10 - Path Traversal",
            "date": "2026-04-30",
            "url": "https://www.exploit-db.com/exploits/52540"
        }
    ],
    "refs_list": [
        "https://www.calero.com/",
        "https://www.vulncheck.com/advisories/calero-verasmart-2022-r1-static-iis-machine-keys-enable-viewstate-rce"
    ]
}