Skip to content
Fencer Vulns
medium 5.3

CVE-2023-32762 json

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.

published 2023-05-28 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-36986

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

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.

Patch / fix

  • qt qtbase 5.15.14, 6.2.9, 6.5.1
  • qt6-base Debian 14, Debian 13, Debian 12 6.4.2+dfsg-9
  • qtbase-opensource-src Debian 14, Debian 13, Debian 12 5.15.8+dfsg-10

debian advisories DEBIAN-CVE-2023-32762

  • qtbase-opensource-src Ubuntu Pro 18.04 LTS 5.9.5+dfsg-0ubuntu2.6+esm1
  • qtbase-opensource-src Ubuntu Pro 20.04 LTS 5.12.8+dfsg-0ubuntu2.1+esm1
  • qtbase-opensource-src Ubuntu Pro 22.04 LTS 5.15.3+dfsg-2ubuntu0.2+esm1

ubuntu advisories UBUNTU-CVE-2023-32762

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • qt6-base SLE Module for Package Hub 15 SP4, openSUSE Leap 15.4 6.2.2-150400.4.6.1
  • qt6-base SLE Module for Package Hub 15 SP5, SLE Module for Desktop Applications 15 SP5, openSUSE Leap 15.5 6.4.2-150500.3.7.4
  • libqt5-qtbase SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +8 more 5.12.7-150200.4.23.1
  • libqt5-qtbase SLE Module for Desktop Applications 15 SP5, SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.15.8+kde185-150500.4.8.1
  • libqt5-qtbase SLE Module for Desktop Applications 15 SP4, SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 5.15.2+kde294-150400.6.6.1

suse advisories SUSE-SU-2023:3380-1SUSE-SU-2023:3225-1SUSE-SU-2023:3207-1SUSE-SU-2023:3018-1SUSE-SU-2023:2982-1

  • libqt5-qtbase openSUSE Tumbleweed 5.15.9+kde154-1.1
  • qt6-base openSUSE Tumbleweed 6.5.3-2.1

opensuse advisories openSUSE-SU-2024:12955-1openSUSE-SU-2024:13289-1

  • qt5-qtbase Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 5.15.9_git20230505-r0
  • qt6-qtbase Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 6.5.0-r5

alpine advisories ALPINE-CVE-2023-32762

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • qt5-qtbase CBL-Mariner 2.0 5.12.11-8

azure linux advisories AZL-26944

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

  • qt qtbase

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.