{"id":"CVE-2025-6338","title":"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.\n\nThis issue affects Qt from 5.15.0 through 6.8.3, from 6.9.0 before 6.9.2.","summary":"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.\n\nThis issue affects Qt from 5.15.0 through 6.8.3, from 6.9.0 before 6.9.2.","severity":"none","cwe":["CWE-459"],"published":"2025-10-16","updated":"2026-07-29","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-6338","references":[{"url":"https://codereview.qt-project.org/c/qt/qtbase/+/651495","label":"a59d8014-47c4-4630-ab43-e1b13cbe58e3"}],"tags":["nvd"],"epss":0.00427,"epssPercentile":0.36562,"ingestedAt":"2026-07-29T10:45:50.456Z","slug":"CVE-2025-6338","body":"## Overview\n\nThere 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.\n\nThis issue affects Qt from 5.15.0 through 6.8.3, from 6.9.0 before 6.9.2.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}