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CVE-2025-6338
Good to know:
Date: October 16, 2025
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.
Severity Score
Severity Score
Weakness Type (CWE)
Incomplete Cleanup
CWE-459Top Fix
Upgrade Version
Upgrade to version https://github.com/qt/qtbase.git - no_fix;https://github.com/qt/qtbase.git - v6.9.2
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | CHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | NONE |
| Availability (A): | HIGH |