CVE-2025-6338

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.

Score
CVSS 4.0 9.2 Critical
Status
Deferred - a59d8014-47c4-4630-ab43-e1b13cbe58e3
Published
2025-10-16
Last modified
2026-10-09
Weaknesses
CWE-459

Affected products

References