Exploit for Uncontrolled Resource Consumption in Opcfoundation Ua-.Netstandard_1A8BEE35-3D8B-5217-A51A-9AE6A5DD1043

{
    "lastseen": "2026-04-29T09:00:19",
    "description": "OPC UA Authentication Challenge Gateway CDDC 2026 | Modular ICS/OT Security Layer --- Overview This module is a standalone, modular OPC UA authentication challenge layer that sits in front of any ICS/OT testbed as a network-level gateway. Competitors...",
    "published": "2026-04-29T08:40:15",
    "modified": "2026-04-29T08:52:49",
    "type": "githubexploit",
    "title": "Exploit for Uncontrolled Resource Consumption in Opcfoundation Ua-.Netstandard",
    "source": "",
    "references": "",
    "id": "1A8BEE35-3D8B-5217-A51A-9AE6A5DD1043",
    "bulletinFamily": "exploit",
    "cwe": null,
    "cvelist": [
        "CVE-2023-27321"
    ],
    "sourceData": "",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "version": "3.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "3.0",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "attackVector": "NETWORK",
            "attackComplexity": "LOW",
            "privilegesRequired": "NONE",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "availabilityImpact": "HIGH"
        }
    },
    "href": "https://github.com/JustKhal/OPC-UA-Authentication-Challenge",
    "category_name": "Exploit",
    "post_link": "",
    "product": "",
    "version": "",
    "vendor": "",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}