CVE-2025-6338
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Possible denial of service with multiple incoming connections to a Schannel based server with a TLS backend
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Qt
- Vendor
- Qt
- Product
- Qt
- Platforms
- Windows
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | unaffected | python | 5.15.0 | Unavailable | None listed |
| 5.15.0 | affected | python | Unavailable | 6.8.3 | None listed |
| 6.8.4 | unaffected | python | 6.9.0 | Unavailable | None listed |
| 6.9.0 | affected | python | 6.9.2 | Unavailable | None listed |