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Fencer Vulns
medium 6.5

CVE-2023-32573 json

In Qt before 5.15.14, 6.0.x through 6.2.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1, QtSvg QSvgFont m_unitsPerEm initialization is…

published 2023-05-10 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-36816

cvss
6.5
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

In Qt before 5.15.14, 6.0.x through 6.2.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1, QtSvg QSvgFont m_unitsPerEm initialization is mishandled.

Patch / fix

  • qt qt 5.15.14, 6.2.9, 6.5.1
  • qt6-svg Debian 14, Debian 13, Debian 12 6.4.2-2
  • qtsvg-opensource-src Debian 14, Debian 13, Debian 12 5.15.8-3

debian advisories DEBIAN-CVE-2023-32573

  • qtsvg-opensource-src Ubuntu Pro 16.04 LTS 5.5.1-2ubuntu0.1~esm1
  • qtsvg-opensource-src Ubuntu Pro 18.04 LTS 5.9.5-0ubuntu1.1+esm1
  • qtsvg-opensource-src Ubuntu Pro 20.04 LTS 5.12.8-0ubuntu1+esm1
  • qtsvg-opensource-src Ubuntu Pro 22.04 LTS 5.15.3-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2023-32573

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

  • qt5-qtsvg RHEL 8 5.15.3-2.el8
  • qt5-qtsvg-examples RHEL 8 5.15.3-2.el8
  • qt5 RHEL 9 5.15.9-1.el9
  • qt5-qtbase RHEL 9 5.15.9-7.el9
  • qt5-qtbase-gui RHEL 9 5.15.9-7.el9
  • qt5-rpm-macros RHEL 9 5.15.9-1.el9
  • qt5-qtbase-odbc RHEL 9 5.15.9-7.el9
  • qt5-srpm-macros RHEL 9 5.15.9-1.el9

red hat advisories RHSA-2023:6961RHSA-2023:6369

  • libqt4 SLES for SAP 12 SP5, SLES 12 SP5, SLE Workstation Extension 12 SP5 +1 more 4.8.7-8.19.1
  • libqt4-sql-plugins SLES for SAP 12 SP5, SLES 12 SP5, SLE Workstation Extension 12 SP5 +1 more 4.8.7-8.19.1
  • libqt5-qtsvg SLE Real Time 15 SP3, Manager Server 4.2, Manager Proxy 4.2 5.12.7-150200.3.8.1
  • libqt5-qtsvg SLE Module for Desktop Applications 15 SP4, SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 5.15.2+kde16-150400.3.3.1
  • libqt5-qtsvg SLE Module for Desktop Applications 15 SP5, SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.15.8+kde8-150500.3.3.1
  • libqt5-qtsvg SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 5.6.2-3.11.1
  • libqt4 SLES LTSS Extended Security 12 SP5 4.8.7-8.22.1
  • libqt4-sql-plugins SLES LTSS Extended Security 12 SP5 4.8.7-8.22.1

suse advisories SUSE-SU-2025:02968-1SUSE-SU-2023:4622-1SUSE-SU-2023:3209-1SUSE-SU-2023:2981-1SUSE-SU-2023:2969-1SUSE-SU-2023:2967-1

  • qt6-svg Package Hub 15 SP4, openSUSE Leap 15.4 6.2.2-bp154.2.3.1

opensuse advisories openSUSE-SU-2023:0111-1

  • qt5-qtsvg AlmaLinux 8 5.15.3-2.el8
  • qt5-qtsvg-examples AlmaLinux 8 5.15.3-2.el8
  • qt5 AlmaLinux 9 5.15.9-1.el9
  • qt5-qtbase AlmaLinux 9 5.15.9-7.el9
  • qt5-qtbase-gui AlmaLinux 9 5.15.9-7.el9
  • qt5-rpm-macros AlmaLinux 9 5.15.9-1.el9
  • qt5-qtbase-odbc AlmaLinux 9 5.15.9-7.el9
  • qt5-srpm-macros AlmaLinux 9 5.15.9-1.el9

almalinux advisories ALSA-2023:6961ALSA-2023:6369

  • qt5-qtsvg Rocky Linux 8 5.15.3-2.el8
  • qt5 Rocky Linux 9 5.15.9-1.el9
  • qt5-qtdoc Rocky Linux 9 5.15.9-1.el9
  • qt5-qtsvg Rocky Linux 9 5.15.9-2.el9
  • adwaita-qt Rocky Linux 9 1.4.2-1.el9
  • python-qt5 Rocky Linux 9 5.15.9-1.el9
  • qt5-qtscript Rocky Linux 9 5.15.9-1.el9
  • qt5-qtsensors Rocky Linux 9 5.15.9-1.el9

rocky linux advisories RLSA-2023:6961RLSA-2023:6369

  • qt6-qtsvg Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 6.5.0-r1

alpine advisories ALPINE-CVE-2023-32573

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-qtsvg CBL-Mariner 2.0 5.15.9-1

azure linux advisories AZL-26670

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

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-32573 updated cvss 6.5

qt: Uninitialized variable usage in m_unitsPerEm

  • Red Hat Enterprise Linux 6 qt, qt3, qt-x11, qt-odbc, qt-demos, qt-mysql, +10 more Red Hat Enterprise Linux 7 qt, qt3, qt-x11, qt-odbc, qt-qvfb, qt-demos, +12 more
    affected: no fix planned “Out of support scope”
  • Red Hat CodeReady Linux Builder (v. 9) qt5-devel 5.15.9-1.el9
    fixed: vendor fix RHSA-2023:6369
  • Red Hat Enterprise Linux AppStream (v. 8) qt5-qtsvg 5.15.3-2.el8, qt5-qtsvg-examples 5.15.3-2.el8
    fixed: vendor fix RHSA-2023:6961
  • Red Hat Enterprise Linux AppStream (v. 9) qt5 5.15.9-1.el9, qt5-rpm-macros 5.15.9-1.el9, qt5-srpm-macros 5.15.9-1.el9
    fixed: vendor fix RHSA-2023:6369
  • Red Hat CodeReady Linux Builder (v. 9) python3-qt5 5.15.9-1.el9 Red Hat Enterprise Linux AppStream (v. 9) qt5-qt3d 5.15.9-1.el9, adwaita-qt 1.4.2-1.el9, qt5-qtdoc 5.15.9-1.el9, qt5-qtsvg 5.15.9-2.el9, adwaita-qt5 1.4.2-1.el9, python-qt5 5.15.9-1.el9, +59 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-24-046-11 updated cvss 6.5

Siemens SCALANCE XCM-/XRM-300

  • Siemens SCALANCE XCH328 (6GK5328-4TS01-2EC2) <V2.4 Siemens SCALANCE XCM324 (6GK5324-8TS01-2AC2) <V2.4 Siemens SCALANCE XCM328 (6GK5328-4TS01-2AC2) <V2.4 Siemens SCALANCE XCM332 (6GK5332-0GA01-2AC2) <V2.4 Siemens SCALANCE XRH334 (24 V DC, 8xFO, CC) (6GK5334-2TS01-2ER3) <V2.4 Siemens SCALANCE XRM334 (2x230 V AC, 8xFO) (6GK5334-2TS01-4AR3) <V2.4
    +5 more products
    Siemens SCALANCE XRM334 (2x230 V AC, 12xFO) (6GK5334-3TS01-4AR3) <V2.4 Siemens SCALANCE XRM334 (24 V DC, 8xFO) (6GK5334-2TS01-2AR3) <V2.4 Siemens SCALANCE XRM334 (24 V DC, 12xFO) (6GK5334-3TS01-2AR3) <V2.4 Siemens SCALANCE XRM334 (230 V AC, 8xFO) (6GK5334-2TS01-3AR3) <V2.4 Siemens SCALANCE XRM334 (230 V AC, 12xFO) (6GK5334-3TS01-3AR3) <V2.4
    affected: fixed in V2.4 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
21 mo 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 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Classification

Weakness

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.