CVE-2025-6338 — 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.…
Published: 2025-10-16 · CVSS: 9.2 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7