Multiple vulnerabilities in Qt

Published: 2025-10-06

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2025-10728 CVE-2025-10729
CWE-ID	CWE-674 CWE-416
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Qt Universal components / Libraries / Scripting languages
Vendor	Trolltech

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Uncontrolled recursion

EUVDB-ID: #VU116599

Risk: Medium

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-10728

CWE-ID: CWE-674 - Uncontrolled Recursion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to uncontrolled recursion when parsing .SVG images with "" element. A remote attacker can supply a specially crafted .SVG file to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Qt: 6.7.0 - 6.9.2

CPE2.3

External links

https://www.qt.io/blog/security-advisory-uncontrolled-recursion-and-use-after-free-vulnerabilities-in-qt-svg-module-impact-qt
https://codereview.qt-project.org/c/qt/qtsvg/+/654200
https://codereview.qt-project.org/c/qt/qtsvg/+/670894
https://codereview.qt-project.org/c/qt/tqtc-qtsvg/+/671537

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Use-after-free

EUVDB-ID: #VU116600

Risk: High

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-10729

CWE-ID: CWE-416 - Use After Free