Possible denial of service with multiple incoming connections to a Schannel based server with a TLS backend_CVE-2025-6338

{
    "lastseen": "",
    "description": "There is an incomplete cleanup vulnerability in Qt Network's Schannel support on Windows which can lead to a Denial of Service over a long period.This issue affects Qt from 5.15.0 through 6.8.3, from 6.9.0 before 6.9.2.",
    "published": "2025-10-16T09:22:14.709Z",
    "modified": "2025-10-16T09:22:14.709Z",
    "type": "cve",
    "title": "Possible denial of service with multiple incoming connections to a Schannel based server with a TLS backend",
    "source": "TQtC",
    "references": "https://codereview.qt-project.org/c/qt/qtbase/+/651495",
    "id": "CVE-2025-6338",
    "bulletinFamily": "",
    "cwe": [
        "CWE-459"
    ],
    "cvelist": null,
    "sourceData": "The Qt Company Qt 5.15.0\nThe Qt Company Qt 6.9.0",
    "sourceHref": "",
    "cvss": {
        "score": 9.2,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H",
        "version": "4.0"
    },
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        "baseScore": 0,
        "baseSeverity": "",
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        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
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            "baseScore": 0,
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    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Qt",
    "version": "0",
    "vendor": "The Qt Company",
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    "ai_score": 0
}