CVE-2023-32762

MEDIUM EPSS 54.4%
Published May 28, 20233y ago · Modified Jun 17, 20262w ago
5.3 CVSS 3.1
Medium
Find Similar
Published May 28, 2023 3y ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
54.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 4

VendorProductVersionRange
debiandebian_linux10.0any
qtqt*≥5.9.0  –  <5.15.14
qtqt*≥6.0.0  –  <6.2.9
qtqt*≥6.3.0  –  <6.5.1

References 4

  • codereview.qt-project.org https://codereview.qt-project.org/c/qt/qtbase/+/476140
    Patch
  • github.com https://github.com/qt/qtbase/commit/1b736a815be0222f4b24289cf17575fc15707305
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2024/04/msg00027.html
    Third Party Advisory
  • lists.qt-project.org https://lists.qt-project.org/pipermail/announce/2023-May/000414.html
    Mailing ListPatch

Remediation

  • codereview.qt-project.org https://codereview.qt-project.org/c/qt/qtbase/+/476140
    Patch
  • github.com https://github.com/qt/qtbase/commit/1b736a815be0222f4b24289cf17575fc15707305
    Patch
  • lists.qt-project.org https://lists.qt-project.org/pipermail/announce/2023-May/000414.html
    Mailing ListPatch