Alerts
High-Severity Vulnerability in Samsung Android Devices
15 September 2025
Samsung has released security updates addressing a high-severity zero-day vulnerability in Samsung devices. Users of affected product versions are strongly advised to update to the latest versions immediately.
Background
Samsung has released security updates addressing a high-severity out-of-bounds write vulnerability (CVE-2025-21043) in their Android products.
Impact
Successful exploitation of the out-of-bounds write vulnerability could allow an unauthenticated attacker to execute malicious code on a vulnerable device remotely.
Known Exploitation
The vulnerability is reportedly being exploited in the wild.
Affected products
The vulnerability affects Samsung devices using Android 13, 14, 15 and 16.
Mitigation
Users of affected product versions are strongly advised to update to the latest versions immediately.
References
https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=09
https://nvd.nist.gov/vuln/detail/CVE-2025-21043
https://thehackernews.com/2025/09/samsung-fixes-critical-zero-day-cve.html