CVE-2026-21019 Code injection in Samsung Mobile Devices
A local attacker can execute arbitrary code with system privileges on Samsung Galaxy Watch devices due to improper input validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-21019?
CVE-2026-21019 is a high-severity code injection vulnerability in Samsung Mobile Devices, published on 13 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper input validation in FacAtFunction in Galaxy Watch prior to SMR May-2026 Release 1 allows local attacker to execute arbitrary code with system privilege.
Which versions are affected by CVE-2026-21019?
How do I fix CVE-2026-21019?
No fix has been published for CVE-2026-21019 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-21019 being exploited?
There is no known exploitation of CVE-2026-21019 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-mwvv-x94p-96gq.