CVE-2023-43114
An issue was discovered in Qt before 5.15.16, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6...
An issue was discovered in Qt before 5.15.16, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3 on Windows. When using the GDI font engine, if a corrupted font is loaded via QFontDatabase::addApplicationFont{FromData], then it can cause the application to crash because of missing length checks.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in Qt before 5.15.16, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3 on Windows. When using the GDI font engine, if a corrupted font is loaded via QFontDatabase::addApplicationFont{FromData], then it can cause the application to crash because of missing length checks.
- Record
CVE-2023-43114- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
CVE List No score
An issue was discovered in Qt before 5.15.16, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3 on Windows. When using the GDI font engine, if a corrupted font is loaded via QFontDatabase::addApplicationFont{FromData], then it can cause the application to crash because of missing length checks.
- Record
CVE-2023-43114- Updated
- 2026-11-02
EUVDEUVD-2023-47535 No score
An issue was discovered in Qt before 5.15.16, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3 on Windows. When using the GDI font engine, if a corrupted font is loaded via QFontDatabase::addApplicationFont{FromData], then it can cause the application to crash because of missing length checks.
- Record
EUVD-2023-47535- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qqpv-296g-7w66
An issue was discovered in Qt before 5.15.16, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6...
An issue was discovered in Qt before 5.15.16, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3 on Windows. When using the GDI font engine, if a corrupted font is loaded via QFontDatabase::addApplicationFont{FromData], then it can cause the application to crash because of missing length checks.
- Record
GHSA-qqpv-296g-7w66- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVOESA-2023-1877
qt security update
Qt (pronounced as "cute", not "cu-tee") is a cross-platform framework that is usually used as a graphical toolkit, although it is also very helpful in creating CLI applications. It runs on the three major desktop OSes, as well as on mobile OSes, such as Symbian, Nokia Belle, Meego Harmattan, MeeGo or BB10, and on embedded devices. Ports for Android (Necessitas) and iOS are also in development
Security Fix(es):
In Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.2, there can be an application crash in QXmlStreamReader via a crafted XML string that triggers a situation in which a prefix is greater than a length.(CVE-2023-37369)
An issue was discovered in Qt before 5.15.15, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3. There are infinite loops in recursive entity expansion.(CVE-2023-38197)
An issue was discovered in Qt before 5.15.16, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3 on Windows. When using the GDI font engine, if a corrupted font is loaded via QFontDatabase::addApplicationFont{FromData], then it can cause the application to crash because of missing length checks.(CVE-2023-43114)
- Record
OESA-2023-1877- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
OSVOESA-2023-1878
qt security update
Qt (pronounced as "cute", not "cu-tee") is a cross-platform framework that is usually used as a graphical toolkit, although it is also very helpful in creating CLI applications. It runs on the three major desktop OSes, as well as on mobile OSes, such as Symbian, Nokia Belle, Meego Harmattan, MeeGo or BB10, and on embedded devices. Ports for Android (Necessitas) and iOS are also in development
Security Fix(es):
In Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.2, there can be an application crash in QXmlStreamReader via a crafted XML string that triggers a situation in which a prefix is greater than a length.(CVE-2023-37369)
An issue was discovered in Qt before 5.15.15, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3. There are infinite loops in recursive entity expansion.(CVE-2023-38197)
An issue was discovered in Qt before 5.15.16, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3 on Windows. When using the GDI font engine, if a corrupted font is loaded via QFontDatabase::addApplicationFont{FromData], then it can cause the application to crash because of missing length checks.(CVE-2023-43114)
- Record
OESA-2023-1878- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
Show 6 moreShow less
OSVOESA-2023-1879
qt security update
Qt (pronounced as "cute", not "cu-tee") is a cross-platform framework that is usually used as a graphical toolkit, although it is also very helpful in creating CLI applications. It runs on the three major desktop OSes, as well as on mobile OSes, such as Symbian, Nokia Belle, Meego Harmattan, MeeGo or BB10, and on embedded devices. Ports for Android (Necessitas) and iOS are also in development
Security Fix(es):
In Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.2, there can be an application crash in QXmlStreamReader via a crafted XML string that triggers a situation in which a prefix is greater than a length.(CVE-2023-37369)
An issue was discovered in Qt before 5.15.15, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3. There are infinite loops in recursive entity expansion.(CVE-2023-38197)
An issue was discovered in Qt before 5.15.16, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3 on Windows. When using the GDI font engine, if a corrupted font is loaded via QFontDatabase::addApplicationFont{FromData], then it can cause the application to crash because of missing length checks.(CVE-2023-43114)
- Record
OESA-2023-1879- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
OSVOESA-2023-1880
qt security update
Qt (pronounced as "cute", not "cu-tee") is a cross-platform framework that is usually used as a graphical toolkit, although it is also very helpful in creating CLI applications. It runs on the three major desktop OSes, as well as on mobile OSes, such as Symbian, Nokia Belle, Meego Harmattan, MeeGo or BB10, and on embedded devices. Ports for Android (Necessitas) and iOS are also in development
Security Fix(es):
In Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.2, there can be an application crash in QXmlStreamReader via a crafted XML string that triggers a situation in which a prefix is greater than a length.(CVE-2023-37369)
An issue was discovered in Qt before 5.15.15, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3. There are infinite loops in recursive entity expansion.(CVE-2023-38197)
An issue was discovered in Qt before 5.15.16, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3 on Windows. When using the GDI font engine, if a corrupted font is loaded via QFontDatabase::addApplicationFont{FromData], then it can cause the application to crash because of missing length checks.(CVE-2023-43114)
- Record
OESA-2023-1880- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
OSVOESA-2023-1881
qt security update
Qt (pronounced as "cute", not "cu-tee") is a cross-platform framework that is usually used as a graphical toolkit, although it is also very helpful in creating CLI applications. It runs on the three major desktop OSes, as well as on mobile OSes, such as Symbian, Nokia Belle, Meego Harmattan, MeeGo or BB10, and on embedded devices. Ports for Android (Necessitas) and iOS are also in development
Security Fix(es):
An issue was discovered in Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.2. Certificate validation for TLS does not always consider whether the root of a chain is a configured CA certificate.(CVE-2023-34410)
In Qt before 5.15.15, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.2, there can be an application crash in QXmlStreamReader via a crafted XML string that triggers a situation in which a prefix is greater than a length.(CVE-2023-37369)
An issue was discovered in Qt before 5.15.15, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3. There are infinite loops in recursive entity expansion.(CVE-2023-38197)
An issue was discovered in Qt before 5.15.16, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3 on Windows. When using the GDI font engine, if a corrupted font is loaded via QFontDatabase::addApplicationFont{FromData], then it can cause the application to crash because of missing length checks.(CVE-2023-43114)
- Record
OESA-2023-1881- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2023-43114
An issue was discovered in Qt before 5.15.16, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3 on Windows. When using the GDI font engine, if a corrupted font is loaded via QFontDatabase::addApplicationFont{FromData], then it can cause the application to crash because of missing length checks.
- Record
UBUNTU-CVE-2023-43114- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-06
OSV No score
An issue was discovered in Qt before 5.15.16, 6.x before 6.2.10, and 6.3.x through 6.5.x before 6.5.3 on Windows. When using the GDI font engine, if a corrupted font is loaded via QFontDatabase::addApplicationFont{FromData], then it can cause the application to crash because of missing length checks.
- Record
CVE-2023-43114- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:13308-1 No score
libQt5Bootstrap-devel-static-32bit-5.15.11+kde134-1.1 on GA media
These are all security issues fixed in the libQt5Bootstrap-devel-static-32bit-5.15.11+kde134-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:13308-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
qtopenEuler:22.03-LTS-SP1 From an advisory covering 3 CVEs |
before 4.8.7-58.oe2203sp1 | 4.8.7-58.oe2203sp1 |
qtopenEuler:22.03-LTS-SP2 From an advisory covering 3 CVEs |
before 4.8.7-58.oe2203sp2 | 4.8.7-58.oe2203sp2 |
qtopenEuler:20.03-LTS-SP1 From an advisory covering 3 CVEs |
before 4.8.7-55.oe1 | 4.8.7-55.oe1 |
qtopenEuler:20.03-LTS-SP3 From an advisory covering 3 CVEs |
before 4.8.7-55.oe1 | 4.8.7-55.oe1 |
qtopenEuler:22.03-LTS From an advisory covering 4 CVEs |
before 4.8.7-58.oe2203 | 4.8.7-58.oe2203 |
qt4-x11Ubuntu:14.04:LTS |
All versions, plus listed versions 4:4.8.4+dfsg-0ubuntu184:4.8.4+dfsg-0ubuntu194:4.8.4+dfsg-0ubuntu204:4.8.4+dfsg-0ubuntu214:4.8.4+dfsg-0ubuntu224:4.8.5+git192-g085f851+dfsg-2ubuntu34:4.8.5+git192-g085f851+dfsg-2ubuntu44:4.8.5+git192-g085f851+dfsg-2ubuntu4.1 |
None known |
qt4-x11Ubuntu:16.04:LTS |
All versions, plus listed versions 4:4.8.6+git64-g5dc8b2b+dfsg-3~ubuntu84:4.8.7+dfsg-5ubuntu14:4.8.7+dfsg-5ubuntu2 |
None known |
qtbase-opensource-srcUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 5.4.2+dfsg-2ubuntu95.5.1+dfsg-6ubuntu45.5.1+dfsg-10ubuntu25.5.1+dfsg-13ubuntu15.5.1+dfsg-13ubuntu2 Show 15 moreShow less5.5.1+dfsg-13ubuntu35.5.1+dfsg-14ubuntu15.5.1+dfsg-14ubuntu25.5.1+dfsg-14ubuntu35.5.1+dfsg-15ubuntu15.5.1+dfsg-16ubuntu15.5.1+dfsg-16ubuntu65.5.1+dfsg-16ubuntu75.5.1+dfsg-16ubuntu7.15.5.1+dfsg-16ubuntu7.25.5.1+dfsg-16ubuntu7.55.5.1+dfsg-16ubuntu7.65.5.1+dfsg-16ubuntu7.75.5.1+dfsg-16ubuntu7.7+esm15.5.1+dfsg-16ubuntu7.7+esm2 |
None known |
qtbase-opensource-src-glesUbuntu:16.04:LTS |
All versions, plus listed versions 5.4.2+dfsg-2ubuntu95.5.1+dfsg-6ubuntu15.5.1+dfsg-10ubuntu15.5.1+dfsg-13ubuntu15.5.1+dfsg-13ubuntu2 Show 9 moreShow less5.5.1+dfsg-13ubuntu35.5.1+dfsg-14ubuntu15.5.1+dfsg-14ubuntu25.5.1+dfsg-14ubuntu35.5.1+dfsg-15ubuntu15.5.1+dfsg-16ubuntu15.5.1+dfsg-16ubuntu45.5.1+dfsg-16ubuntu55.5.1+dfsg-16ubuntu6 |
None known |
qtbase-opensource-srcUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 5.9.1+dfsg-10ubuntu15.9.1+dfsg-10ubuntu25.9.2+dfsg-4ubuntu65.9.3+dfsg-0ubuntu15.9.3+dfsg-0ubuntu3 Show 12 moreShow less5.9.3+dfsg-0ubuntu45.9.4+dfsg-0ubuntu35.9.4+dfsg-0ubuntu45.9.5+dfsg-0ubuntu15.9.5+dfsg-0ubuntu25.9.5+dfsg-0ubuntu2.15.9.5+dfsg-0ubuntu2.35.9.5+dfsg-0ubuntu2.45.9.5+dfsg-0ubuntu2.55.9.5+dfsg-0ubuntu2.65.9.5+dfsg-0ubuntu2.6+esm15.9.5+dfsg-0ubuntu2.6+esm2 |
None known |
Show 20 moreShow less
| Package | Affected | Fixed |
|---|---|---|
qt4-x11Ubuntu:18.04:LTS |
All versions, plus listed versions 4:4.8.7+dfsg-7ubuntu1 |
None known |
qtbase-opensource-srcUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 5.12.4+dfsg-4ubuntu15.12.5+dfsg-25.12.5+dfsg-85.12.5+dfsg-8build15.12.5+dfsg-9build1 Show 6 moreShow less5.12.8+dfsg-0ubuntu15.12.8+dfsg-0ubuntu2.15.12.8+dfsg-0ubuntu2.1+esm15.12.8+dfsg-0ubuntu2.1+esm25.12.8+dfsg-0ubuntu2.1+esm35.12.8+dfsg-0ubuntu2.1+esm4 |
None known |
qtbase-opensource-src-glesUbuntu:20.04:LTS |
All versions, plus listed versions 5.12.4+dfsg-1build15.12.5+dfsg-15.12.5+dfsg-25.12.8+dfsg-0ubuntu1 |
None known |
qt6-baseUbuntu:22.04:LTS |
All versions, plus listed versions 6.2.2+dfsg-5ubuntu16.2.2+dfsg-6ubuntu16.2.2+dfsg-6ubuntu26.2.4+dfsg-1ubuntu16.2.4+dfsg-2ubuntu16.2.4+dfsg-2ubuntu1.1 |
None known |
qtbase-opensource-srcUbuntu:22.04:LTS |
All versions, plus listed versions 5.15.2+dfsg-125.15.2+dfsg-135.15.2+dfsg-145.15.2+dfsg-14ubuntu15.15.2+dfsg-14ubuntu3 Show 5 moreShow less5.15.2+dfsg-155.15.3+dfsg-15.15.3+dfsg-25.15.3+dfsg-2ubuntu0.15.15.3+dfsg-2ubuntu0.2 |
None known |
qtbase-opensource-src-glesUbuntu:22.04:LTS |
All versions, plus listed versions 5.15.2+dfsg-45.15.2+dfsg-55.15.3+dfsg-1 |
None known |
qtbase-opensource-srcUbuntu:Pro:22.04:LTS |
All versions, plus listed versions 5.15.2+dfsg-125.15.2+dfsg-135.15.2+dfsg-145.15.2+dfsg-14ubuntu15.15.2+dfsg-14ubuntu3 Show 8 moreShow less5.15.2+dfsg-155.15.3+dfsg-15.15.3+dfsg-25.15.3+dfsg-2ubuntu0.15.15.3+dfsg-2ubuntu0.25.15.3+dfsg-2ubuntu0.2+esm15.15.3+dfsg-2ubuntu0.2+esm25.15.3+dfsg-2ubuntu0.2+esm3 |
None known |
qt6-baseUbuntu:24.04:LTS |
All versions, plus listed versions 6.4.2+dfsg-186.4.2+dfsg-196.4.2+dfsg-19build16.4.2+dfsg-206.4.2+dfsg-216.4.2+dfsg-21.1build46.4.2+dfsg-21.1build5 |
None known |
qtbase-opensource-srcUbuntu:24.04:LTS |
All versions, plus listed versions 5.15.10+dfsg-35.15.10+dfsg-55.15.10+dfsg-5ubuntu15.15.12+dfsg-1ubuntu15.15.12+dfsg-3ubuntu15.15.12+dfsg-3ubuntu65.15.12+dfsg-3ubuntu75.15.13+dfsg-1ubuntu1 |
None known |
qtbase-opensource-src-glesUbuntu:24.04:LTS |
All versions, plus listed versions 5.15.10+dfsg-25.15.10+dfsg-35.15.12+dfsg-15.15.12+dfsg-1ubuntu15.15.12+dfsg-1ubuntu25.15.13+dfsg-1 |
None known |
qtbase-opensource-srcUbuntu:Pro:24.04:LTS |
All versions, plus listed versions 5.15.10+dfsg-35.15.10+dfsg-55.15.10+dfsg-5ubuntu15.15.12+dfsg-1ubuntu15.15.12+dfsg-3ubuntu1 Show 4 moreShow less5.15.12+dfsg-3ubuntu65.15.12+dfsg-3ubuntu75.15.13+dfsg-1ubuntu15.15.13+dfsg-1ubuntu1+esm1 |
None known |
qt6-baseUbuntu:25.10 |
All versions, plus listed versions 6.8.3+dfsg-0ubuntu26.8.3+dfsg-0ubuntu36.9.2+dfsg-1ubuntu1 |
None known |
qtbase-opensource-srcUbuntu:25.10 |
All versions, plus listed versions 5.15.15+dfsg-4ubuntu15.15.15+dfsg-5ubuntu15.15.17+dfsg-1ubuntu1 |
None known |
qtbase-opensource-src-glesUbuntu:25.10 |
All versions, plus listed versions 5.15.15+dfsg-25.15.17+dfsg-1 |
None known |
qt6-baseUbuntu:26.10 |
All versions, plus listed versions 6.10.2+dfsg-76.10.2+dfsg-14ubuntu26.10.2+dfsg-156.10.2+dfsg-166.11.2+dfsg-4ubuntu2 |
None known |
qtbase-opensource-srcUbuntu:26.10 |
All versions, plus listed versions 5.15.18+dfsg-1ubuntu15.15.19+dfsg-2ubuntu15.15.19+dfsg-2ubuntu2 |
None known |
qtbase-opensource-src-glesUbuntu:26.10 |
All versions, plus listed versions 5.15.18+dfsg-15.15.19+dfsg-2 |
None known |
qtbase-opensource-srcUbuntu:26.04:LTS |
All versions, plus listed versions 5.15.17+dfsg-1ubuntu15.15.17+dfsg-1ubuntu25.15.18+dfsg-1ubuntu1 |
None known |
qtbase-opensource-src-glesUbuntu:26.04:LTS |
All versions, plus listed versions 5.15.17+dfsg-15.15.17+dfsg-25.15.18+dfsg-1 |
None known |
libqt5-qtbaseopenSUSE:Tumbleweed |
before 5.15.11+kde134-1.1 | 5.15.11+kde134-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | OSV | |
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-43114 is a medium vulnerability (CVSS 5.5) in Qt, published September 18, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 19th percentile. Fixed in libqt5-qtbase 5.15.11+kde134-1.1.
References
codereview.qt-project.org/c/qt/qtbase/+/503026
nvd.nist.gov/vuln/detail/CVE-2023-43114
github.com/advisories/GHSA-qqpv-296g-7w66
openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1877
Show 9 moreShow less
ubuntu.com/security/CVE-2023-43114
cve.org/CVERecord?id=CVE-2023-43114
suse.com/security/cve/CVE-2023-43114