CVE•Published 2025-10-16•Modified 2026-07-29•0 articles on news•6 live references•NVD data

CVE-2025-6338

Vulnerability data via NVD (ingested)

CVSS v3.1

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EPSS percentile

Exploit Prediction Scoring System · top 65% of all CVEs

Weaknesses (CWE)

CWE-459Incomplete Cleanup

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.

Timeline

Published 2025-10-16

Modified 2026-07-29

External references

NVD MITRE Exploit-DB GitHub PoC trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2025-6338

Hosts Shodan has explicitly fingerprinted as vulnerable.

More intel sources (5)

Shodan report

vuln:CVE-2025-6338

Country / ASN / product breakdown for the vuln query.

Censys

vulnerabilities.cve_id: CVE-2025-6338

Censys host search filtered to this CVE id.

grep.app

CVE-2025-6338