Vulnerability in Qt

CVE-2023-32762

An issue was discovered in Qt before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. Qt Network incorrectly parses the strict-transport-security (HSTS) header, allowing unencrypted connections to be established, even when explicitly prohibited by the server. This happens if the case used for this header does not exactly match.

EPSS: 0.009 (55.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

References

Frequently asked questions

What is CVE-2023-32762?
CVE-2023-32762 is a medium-severity vulnerability in Qt. CVSS score: 5.3/10. Published 2023-05-28.
How severe is CVE-2023-32762?
Medium severity. CVSS v3 base score is 5.3 out of 10.