CVE-2023-43114

MEDIUM EPSS 16.1%

Published Sep 18, 20232y ago · Modified Jun 17, 20262w ago

5.5 CVSS 3.1

Medium

Published Sep 18, 2023 2y ago

Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score

5.5

Exploitability

1.8

Impact

3.6

Vector string

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector Local

Attack Complexity Low

Privileges Required None

User Interaction Required

Scope Unchanged

Confidentiality None

Integrity None

Availability High

Threat Intelligence

EPSS Exploit Probability

16.1% percentile

Exploit & Patch Status

No Known Exploit

Patch Available

Affected Products 4

Vendor	Product	Version	Range
qt	qt	*	<5.15.16
qt	qt	*	≥6.0.0 – <6.2.10
qt	qt	*	≥6.5.0 – <6.5.3
microsoft	windows	*	any

References 1

codereview.qt-project.org https://codereview.qt-project.org/c/qt/qtbase/+/503026

PatchVendor Advisory

Remediation

codereview.qt-project.org https://codereview.qt-project.org/c/qt/qtbase/+/503026

PatchVendor Advisory