5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
0.001 Low
EPSS
Percentile
37.4%
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.