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CVE PROGRAM SOURCE RECORD9.2 Critical

CVE-2025-6338

Possible denial of service with multiple incoming connections to a Schannel based server with a TLS backend

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Status
Published
Published
Updated
Assigning organization
TQtC

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Qt Qt

Default version status: unaffected

  • 0 to < 5.15.0unaffected
  • 5.15.0 to ≤ 6.8.3affected
  • 6.8.4 to < 6.9.0unaffected
  • 6.9.0 to < 6.9.2affected

References