PT-2025-40529 · Qt Company+1 · Qt 6.9.0+2
CVSS v4.0
9.4
Critical
| Vector | AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:X/R:X/V:X/RE:H/U:Red |
Name of the Vulnerable Software and Affected Versions
Qt versions 6.7.0 through 6.9.0
Qt6-svg
qtsvg-opensource-src
Description
The issue is a use-after-free condition within the Qt framework, specifically related to the parsing of SVG files. The
renderPattern() function and the SVG module are affected. The vulnerability occurs when a node is deleted after creation but is subsequently accessed, leading to a use-after-free scenario. This could allow an attacker to execute arbitrary code or cause a denial of service. The vulnerability impacts applications utilizing the Qt SVG module.Recommendations
Update to Qt version 6.9.3.
For systems using qt6-svg, apply the available security patch.
For systems using qtsvg-opensource-src, apply the available security patch.
Fix
DoS
RCE
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Qt 6.7.0
Qt 6.9.0