CVE-2025-4211

qt: Improper Link Resolution Before File Access in QFileSystemEngine on Windows

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Severity

Important

Red Hat Product Security

7.3

CVSS 3.1

Review impact separately from score.

Published · May 16, 2025

Updated · June 30, 2026

Description

A flaw was found in the QFileSystemEngine in the Qt corelib module on Windows. The vulnerability arises when using the GetTempPath API, which allows attackers to manipulate temporary file paths, potentially leading to unauthorized access and privilege escalation. The affected public API in the Qt Framework is QDir::tempPath(), and anything that uses it, such as QStandardPaths with TempLocation, QTemporaryDir, and QTemporaryFile.

Statement

This vulnerability is specific to Qt on Windows systems. Red Hat is not affected.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

CWE-59 · Improper Link Resolution Before File Access ('Link Following')