9.2

CVE-2025-6338

Possible denial of service with multiple incoming connections to a Schannel based server with a TLS backend

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerQt
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Produkt Qt
Default Statusunaffected
Version 0
Version < 5.15.0
Status unaffected
Version <= 6.8.3
Version 5.15.0
Status affected
Version 6.8.4
Version < 6.9.0
Status unaffected
Version 6.9.0
Version < 6.9.2
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.4% 0.323
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
a59d8014-47c4-4630-ab43-e1b13cbe58e3 9.2 0 0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-459 Incomplete Cleanup

The product does not properly "clean up" and remove temporary or supporting resources after they have been used.

https://codereview.qt-project.org/c/qt/qtbase/+/651495