CVE-2025-4211

Description

Improper Link Resolution Before File Access ('Link Following') vulnerability in QFileSystemEngine in the Qt corelib module on Windows which potentially allows Symlink Attacks and the use of Malicious Files. Issue originates from CVE-2024-38081. The vulnerability arises from the use of the GetTempPath API, which can be exploited by 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.This issue affects all version of Qt up to and including 5.15.18, from 6.0.0 through 6.5.8, from 6.6.0 through 6.8.1. It is fixed in Qt 5.15.19, Qt 6.5.9, Qt 6.8.2, 6.9.0

Reserved 2025-05-02 | Published 2025-05-16 | Updated 2025-05-16 | Assigner TQtC

Problem types

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

Product status

Default status
unaffected

Any version
affected

6.0.0
affected

6.6.0
affected

References

codereview.qt-project.org/c/qt/qtbase/+/632231

cve.org (CVE-2025-4211)

nvd.nist.gov (CVE-2025-4211)

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