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VULNERABILITIES

CVE-2025-6338 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://codereview.qt-project.org/c/qt/qtbase/+/651495 TQtCSource CodeVendor

Weakness Enumeration

CWE-IDCWE NameSource
CWE-459Incomplete CleanupTQtC

Affected Products

ProductVersions
Qt
>= 5.15.0, <= 6.8.3 (semver)
>= 6.9.0, < 6.9.2 (semver)

CPE

  • cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2025-6338
NVD Published Date:
Oct 16, 2025
NVD Last Modified:
Jul 29, 2026
Source:
TQtC
CVE-2025-6338 Details - Not Deferred