CVE-2026-21079 Information disclosure in Smart Switch

High 7.0 Published 10 Aug 2026 Updated 10 Aug 2026

Adjacent attackers can intercept sensitive data transmitted by Samsung Smart Switch due to missing encryption, requiring an upgrade to secure communications.

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: None listed

What is CVE-2026-21079?

CVE-2026-21079 is a high-severity vulnerability in Samsung Mobile Smart Switch, published on 10 Aug 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

Missing encryption of sensitive data in Smart Switch prior to version 3.7.72.6 allows adjacent attackers to intercept transmitted data.

Weakness: CWE-311

Which versions are affected by CVE-2026-21079?

It affects 1 product.

Products include Samsung Smart Switch.

How do I fix CVE-2026-21079?

No fix has been published for CVE-2026-21079 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-21079 being exploited?

There is no known exploitation of CVE-2026-21079 in the wild and no public exploit code.

Sources

Also known as GHSA-8ch7-v647-mr2v.