CVE-2026-21005 Path traversal in Smart Switch

High 7.1 Published 16 Mar 2026 Updated 16 Mar 2026

Adjacent attackers can overwrite arbitrary files with Smart Switch privileges due to a path traversal vulnerability in the application.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2026-21005?

CVE-2026-21005 is a high-severity path traversal vulnerability in Samsung Mobile Smart Switch, published on 16 Mar 2026. 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

Path traversal in Smart Switch prior to version 3.7.69.15 allows adjacent attackers to overwrite arbitrary files with Smart Switch privilege.

Weakness: CWE-22

Which versions are affected by CVE-2026-21005?

It affects 1 product.

Products include Samsung Smart Switch.

How do I fix CVE-2026-21005?

No fix has been published for CVE-2026-21005 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2026-21005 being exploited?

There is no known exploitation of CVE-2026-21005 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-j3g7-cp6v-qp9f.