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        "cveId": "CVE-2026-105946",
        "assignerOrgId": "a59d8014-47c4-4630-ab43-e1b13cbe58e3",
        "state": "PUBLISHED",
        "assignerShortName": "Qt",
        "dateReserved": "2026-10-06T07:24:45.304Z",
        "datePublished": "2026-10-27T06:45:36.400Z",
        "dateUpdated": "2026-10-27T06:45:36.400Z"
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                "shortName": "Qt",
                "dateUpdated": "2026-10-27T06:45:36.400Z"
            },
            "title": "Out-of-bounds read vulnerability in NTLM authentication handling impacts Qt",
            "datePublic": "2026-06-19T13:56:00.000Z",
            "problemTypes": [
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                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-125",
                            "description": "CWE-125 Out-of-bounds Read",
                            "type": "CWE"
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            "impacts": [
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                    "capecId": "CAPEC-540",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-540 Overread Buffers"
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            ],
            "affected": [
                {
                    "vendor": "qt",
                    "product": "qt",
                    "modules": [
                        "qtbase"
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                    "versions": [
                        {
                            "status": "unknown",
                            "version": "0",
                            "lessThan": "6.8.0",
                            "versionType": "python"
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                        {
                            "status": "affected",
                            "version": "6.8.0",
                            "lessThan": "6.8.10",
                            "versionType": "python"
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                            "status": "affected",
                            "version": "6.9.0",
                            "lessThan": "6.11.2",
                            "versionType": "python"
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            "descriptions": [
                {
                    "lang": "en",
                    "value": "Out-of-bounds read in the QAuthenticator NTLM authentication handling in the Qt Network module in Qt Group Qt allows remote attackers to obtain sensitive information (heap memory contents) or cause a denial of service (application crash) via a crafted NTLM challenge sent by a malicious server or proxy, when an application using QNetworkAccessManager or QTcpSocket authenticates with NTLM.",
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                            "value": "<p>Out-of-bounds read in the <code>QAuthenticator</code> NTLM authentication handling in the Qt Network module in Qt Group Qt allows remote attackers to obtain sensitive information (heap memory contents) or cause a denial of service (application crash) via a crafted NTLM challenge sent by a malicious server or proxy, when an application using <code>QNetworkAccessManager</code> or <code>QTcpSocket</code> authenticates with NTLM.</p>"
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                    "url": "https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-105946:",
                    "tags": [
                        "vendor-advisory"
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                    "url": "https://codereview.qt-project.org/c/qt/qtbase/+/745457",
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                        "patch"
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                    "url": "https://codereview.qt-project.org/c/qt/qtbase/+/744448",
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                        "patch"
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                    "url": "https://codereview.qt-project.org/c/qt/qtbase/+/745464",
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                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "ACTIVE",
                        "vulnConfidentialityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "PROOF_OF_CONCEPT",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
                        "baseSeverity": "MEDIUM",
                        "baseScore": 5.3,
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:P"
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            "source": {
                "advisory": "QVM-279",
                "discovery": "INTERNAL"
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