Calero VeraSMART < 2022 R1 Static IIS Machine Keys Enable ViewState RCE_CVE-2026-26335

{
    "lastseen": "",
    "description": "Calero VeraSMART versions prior to\u00a02022 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.",
    "published": "2026-02-13T20:51:26.374Z",
    "modified": "2026-02-13T21:27:16.720Z",
    "type": "cve",
    "title": "Calero VeraSMART < 2022 R1 Static IIS Machine Keys Enable ViewState RCE",
    "source": "VulnCheck",
    "references": "https://www.calero.com/\nhttps://www.vulncheck.com/advisories/calero-verasmart-2022-r1-static-iis-machine-keys-enable-viewstate-rce",
    "id": "CVE-2026-26335",
    "bulletinFamily": "",
    "cwe": [
        "CWE-321"
    ],
    "cvelist": null,
    "sourceData": "Calero VeraSMART 0",
    "sourceHref": "",
    "cvss": {
        "score": 9.3,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "VeraSMART",
    "version": "0",
    "vendor": "Calero",
    "ai_description": "Remote code execution via static ASP.NET/IIS machineKey values",
    "ai_severity": "Critical",
    "ai_vendor": "Calero",
    "ai_product": "VeraSMART",
    "ai_version": "< 2022 R1",
    "ai_score": 9.3
}