Resource Allocation Vulnerability in Qt Framework by The Qt Company
CVE-2025-12385

8.7HIGH

Key Information:

Vendor

The Qt Company

Status
Qt
Vendor
CVE Published:
3 December 2025

What is CVE-2025-12385?

A vulnerability in The Qt Company's Qt Framework affects both desktop and mobile platforms, leading to improper validation of input. Specifically, the issue arises within the Text component of Qt Quick, where inadequate checks on the tag's width and height can result in excessive resource allocation. This unchecked input can cause applications to become unresponsive, impacting user experience across Qt versions from 5.0.0 through 6.10.0.

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Affected Version(s)

Qt Windows 5.0.0 <= 6.5.10

Qt Windows 6.6.0 <= 6.8.5

Qt Windows 6.9.0 <= 6.10.0

References

https://codereview.qt-project.org/c/qt/qtdeclarative/+/68...
https://codereview.qt-project.org/c/qt/qtdeclarative/+/68...

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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