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CVE-2025-6338

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CVE-2025-6338

Published: Oct 16, 2025

Modified: Oct 16, 2025

PUBLISHED

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.

VendorProductVersions

The Qt Company

Qt

unaffected
0 - < 5.15.0
affected
5.15.0 - <= 6.8.3
unaffected
6.8.4 - < 6.9.0
affected
6.9.0 - < 6.9.2

Weaknesses (CWE)

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