CVE-2026-21136 Missing authorization in Smart Switch
Physical attackers can bypass authorization to invoke the application restore process in Samsung Smart Switch.
- 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-2026-21136?
CVE-2026-21136 is a medium-severity missing authorization vulnerability in Samsung Mobile Smart Switch, published on 12 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Improper authorization in Smart Switch prior to version 3.7.73 allows physical attackers to invoke application restore process.
Which versions are affected by CVE-2026-21136?
How do I fix CVE-2026-21136?
No fix has been published for CVE-2026-21136 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-21136 being exploited?
There is no known exploitation of CVE-2026-21136 in the wild and no public exploit code.
Sources
Also known as GHSA-pwf7-mccj-xg33.