CVE-2020-0570 Path traversal in QT Library

High 7.3 Published 14 Sep 2020 Updated 8 Oct 2026

An authenticated local attacker can exploit an uncontrolled search path in the Qt Library to achieve privilege escalation.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2020-0570?

CVE-2020-0570 is a high-severity path traversal vulnerability in Qt Qt, published on 14 Sep 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Uncontrolled search path in the QT Library before 5.14.0, 5.12.7 and 5.9.10 may allow an authenticated user to potentially enable elevation of privilege via local access.

Weakness: CWE-426

Which versions are affected by CVE-2020-0570?

It affects 2 products.

Products include Qt Qt, Redhat Enterprise Linux.

How do I fix CVE-2020-0570?

Upgrade to a fixed version.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2020-0570 being exploited?

There is no known exploitation of CVE-2020-0570 in the wild and no public exploit code.

All Qt Qt vulnerabilities

Sources

Also known as AZL-6834, CVE-2020-24741, DEBIAN-CVE-2020-0570, GHSA-9j84-h9rr-927m.