CVE-2025-21078 Weak cryptography in Smart Switch
Adjacent attackers can access application backup data due to insufficiently random secret keys 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-2025-21078?
CVE-2025-21078 is a high-severity vulnerability in Samsung Mobile Smart Switch, published on 5 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Use of insufficiently random value of secretKey in Smart Switch prior to version 3.7.68.6 allows adjacent attackers to access backup data from applications.
Which versions are affected by CVE-2025-21078?
It affects 1 product.
Products include Samsung Smart Switch.
How do I fix CVE-2025-21078?
No fix has been published for CVE-2025-21078 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-21078 being exploited?
There is no known exploitation of CVE-2025-21078 in the wild and no public exploit code.
Other vulnerabilities in Samsung Mobile Smart Switch
Sources
Also known as GHSA-f39f-cwqh-hrrj.