CVE-2023-32573

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-05-10 · updated 2026-06-17
Weakness: CWE-369

Description

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.

Affected products

Qt: before 5.15.14; from 6.0.0 before 6.2.9; from 6.3.0 before 6.5.1 — fixed in 5.15.14, 6.2.9, 6.5.1
Red Hat Enterprise Linux: 8.0, 9.0

How to fix

Upgrade to a fixed version: Qt 5.15.14, 6.2.9, 6.5.1. Check the vendor advisory for mitigations.

References

https://codereview.qt-project.org/c/qt/qtsvg/+/474093
https://lists.debian.org/debian-lts-announce/2023/08/msg00028.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UE3IHQZCEUFVOPWG75V2HDKXNUZBB4FX/
https://codereview.qt-project.org/c/qt/qtsvg/+/474093
https://lists.debian.org/debian-lts-announce/2023/08/msg00028.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UE3IHQZCEUFVOPWG75V2HDKXNUZBB4FX/

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