Critical severityNVD Advisory· Published Oct 16, 2025· Updated Apr 15, 2026

CVE-2025-6338

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.

Affected products

Qt/Qtbaseinferred
Range: >=5.15.0,<=6.8.3,>=6.9.0,<6.9.2

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

codereview.qt-project.org/c/qt/qtbase/+/651495nvd

News mentions

No linked articles in our index yet.

cvss	0.585
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000