Improper server-side validation in ScreenConnect extension framework_CVE-2025-14265

{
    "lastseen": "",
    "description": "In versions of ScreenConnect\u2122 prior to 25.8, server-side validation and integrity checks within the extension subsystem could allow the installation and execution of untrusted or arbitrary extensions by authorized or administrative users. Abuse of this behavior could result in the execution of custom code on the server or unauthorized access to application configuration data. This issue affects only the ScreenConnect server component; host and guest clients are not impacted. ScreenConnect 25.8 introduces enhanced server-side configuration handling and integrity checks to ensure only trusted extensions can be installed.",
    "published": "2025-12-11T14:21:53.234Z",
    "modified": "2025-12-11T14:43:55.333Z",
    "type": "cve",
    "title": "Improper server-side validation in ScreenConnect extension framework",
    "source": "ConnectWise",
    "references": "https://www.connectwise.com/company/trust/security-bulletins/screenconnect-2025.8-security-patch",
    "id": "CVE-2025-14265",
    "bulletinFamily": "",
    "cwe": [
        "CWE-494"
    ],
    "cvelist": null,
    "sourceData": "ConnectWise ScreenConnect All versions prior to 2025.8",
    "sourceHref": "",
    "cvss": {
        "score": 9.1,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
        "version": "3.1"
    },
    "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": "ScreenConnect",
    "version": "All versions prior to 2025.8",
    "vendor": "ConnectWise",
    "ai_description": "Improper server-side validation in the ScreenConnect extension framework allows for the execution of untrusted or arbitrary extensions, potentially leading to custom code execution or unauthorized access to application configuration data.",
    "ai_severity": "Critical",
    "ai_vendor": "ConnectWise",
    "ai_product": "ScreenConnect",
    "ai_version": "All versions prior to 25.8",
    "ai_score": 9.1
}