diff --git a/package/qt6/qt6svg/0001-QSvgFont-Initialize-used-member-remove-unused.patch b/package/qt6/qt6svg/0001-QSvgFont-Initialize-used-member-remove-unused.patch
new file mode 100644
index 0000000000..590b586f9a
--- /dev/null
+++ b/package/qt6/qt6svg/0001-QSvgFont-Initialize-used-member-remove-unused.patch
@@ -0,0 +1,62 @@
+From 3497a6b81f561f61ab784b2847f718e912b4d80c Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Robert=20L=C3=B6hning?= <robert.loehning@qt.io>
+Date: Mon, 24 Apr 2023 15:27:17 +0200
+Subject: [PATCH] QSvgFont: Initialize used member, remove unused
+
+Credit to OSS-Fuzz
+
+[ChangeLog][QtSvg] Fixed undefined behavior from using uninitialized
+variable.
+
+Pick-to: 6.5 6.2 5.15
+Coverity-Id: 22618
+Change-Id: Id52277bb0e2845f4d342e187dbb8093e9276b70c
+Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
+
+Fixes: https://security-tracker.debian.org/tracker/CVE-2023-32573
+Upstream: https://codereview.qt-project.org/gitweb?p=qt%2Fqtsvg.git;a=commit;h=ff22c3ccf8ccf813fdcfda23f7740ba73ba5ce0a
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
+---
+ src/svg/qsvgfont_p.h    | 5 ++---
+ src/svg/qsvghandler.cpp | 2 +-
+ 2 files changed, 3 insertions(+), 4 deletions(-)
+
+diff --git a/src/svg/qsvgfont_p.h b/src/svg/qsvgfont_p.h
+index a7cc98b1..9cf3dfe3 100644
+--- a/src/svg/qsvgfont_p.h
++++ b/src/svg/qsvgfont_p.h
+@@ -38,6 +38,7 @@ public:
+ class Q_SVG_PRIVATE_EXPORT QSvgFont : public QSvgRefCounted
+ {
+ public:
++    static constexpr qreal DEFAULT_UNITS_PER_EM = 1000;
+     QSvgFont(qreal horizAdvX);
+ 
+     void setFamilyName(const QString &name);
+@@ -50,9 +51,7 @@ public:
+     void draw(QPainter *p, const QPointF &point, const QString &str, qreal pixelSize, Qt::Alignment alignment) const;
+ public:
+     QString m_familyName;
+-    qreal m_unitsPerEm;
+-    qreal m_ascent;
+-    qreal m_descent;
++    qreal m_unitsPerEm = DEFAULT_UNITS_PER_EM;
+     qreal m_horizAdvX;
+     QHash<QChar, QSvgGlyph> m_glyphs;
+ };
+diff --git a/src/svg/qsvghandler.cpp b/src/svg/qsvghandler.cpp
+index 29ca7332..a8918489 100644
+--- a/src/svg/qsvghandler.cpp
++++ b/src/svg/qsvghandler.cpp
+@@ -2622,7 +2622,7 @@ static bool parseFontFaceNode(QSvgStyleProperty *parent,
+ 
+     qreal unitsPerEm = toDouble(unitsPerEmStr);
+     if (!unitsPerEm)
+-        unitsPerEm = 1000;
++        unitsPerEm = QSvgFont::DEFAULT_UNITS_PER_EM;
+ 
+     if (!name.isEmpty())
+         font->setFamilyName(name);
+-- 
+2.46.0
+
diff --git a/package/qt6/qt6svg/qt6svg.mk b/package/qt6/qt6svg/qt6svg.mk
index 25e87dd208..4386556548 100644
--- a/package/qt6/qt6svg/qt6svg.mk
+++ b/package/qt6/qt6svg/qt6svg.mk
@@ -9,6 +9,8 @@ QT6SVG_SITE = $(QT6_SITE)
 QT6SVG_SOURCE = qtsvg-$(QT6_SOURCE_TARBALL_PREFIX)-$(QT6SVG_VERSION).tar.xz
 QT6SVG_INSTALL_STAGING = YES
 QT6SVG_SUPPORTS_IN_SOURCE_BUILD = NO
+# 0001-QSvgFont-Initialize-used-member-remove-unused.patch
+QT6SVG_IGNORE_CVES += CVE-2023-32573
 
 QT6SVG_CMAKE_BACKEND = ninja