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

🗓️ 16 Oct 2025 09:22:14Reported by TQtCType 
cvelist
 cvelist
🔗 www.cve.org👁 9 Views

The Qt Schannel cleanup issue on Windows may cause denial of service.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
Circl
CVE-2025-6338
16 Oct 202510:33
circl
CNNVD
Qt 安全漏洞
16 Oct 202500:00
cnnvd
CVE
CVE-2025-6338
16 Oct 202509:22
cve
Debian CVE
CVE-2025-6338
16 Oct 202509:22
debiancve
EUVD
EUVD-2025-34743
16 Oct 202509:22
euvd
NVD
CVE-2025-6338
16 Oct 202510:15
nvd
QT
Security advisory: Recently reported incomplete cleanup issue in Qt's Schannel handling can impact Qt
30 Jun 202500:00
qt
RedhatCVE
CVE-2025-6338
20 Oct 202513:13
redhatcve
Rosalinux
Advisory ROSA-SA-2025-2983
9 Sep 202510:46
rosalinux
Rosalinux
Advisory ROSA-SA-2025-2984
9 Sep 202510:46
rosalinux
Rows per page
[
  {
    "defaultStatus": "unaffected",
    "platforms": [
      "Windows"
    ],
    "product": "Qt",
    "vendor": "The Qt Company",
    "versions": [
      {
        "lessThan": "5.15.0",
        "status": "unaffected",
        "version": "0",
        "versionType": "python"
      },
      {
        "lessThanOrEqual": "6.8.3",
        "status": "affected",
        "version": "5.15.0",
        "versionType": "python"
      },
      {
        "lessThan": "6.9.0",
        "status": "unaffected",
        "version": "6.8.4",
        "versionType": "python"
      },
      {
        "lessThan": "6.9.2",
        "status": "affected",
        "version": "6.9.0",
        "versionType": "python"
      }
    ]
  }
]

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