CVE-2026-21074 Privilege escalation in Bixby

High 7.2 Published Updated

Local attackers can execute arbitrary commands with Bixby privileges due to incorrect default permissions in Samsung Bixby.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-21074?

CVE-2026-21074 is a high-severity vulnerability in Samsung Mobile Bixby, published on 10 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Incorrect default permissions in Bixby prior to version 4.0.86.0 allows local attackers to execute arbitrary commands with Bixby privilege.

Weakness: CWE-276

Which versions are affected by CVE-2026-21074?

How do I fix CVE-2026-21074?

No fix has been published for CVE-2026-21074 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-21074 being exploited?

There is no known exploitation of CVE-2026-21074 in the wild and no public exploit code.

Sources

Also known as GHSA-2xcm-9h5p-f5jp.

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