CVE-2025-6338

Published: Oct 16, 2025Modified: Jun 17, 2026Deferred

9.2

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/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

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:XShow less

Source: a59d8014-47c4-4630-ab43-e1b13cbe58e3 (Secondary)

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.

Related CWEs

CWE-459

Incomplete Cleanup

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

References (1)

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

Source: a59d8014-47c4-4630-ab43-e1b13cbe58e3

Timeline

No history available yet.