CVE-2026-21122 Memory corruption in Samsung Mobile Devices
Local attackers can execute arbitrary code via an out-of-bounds write in the Samsung TTS library on mobile devices.
- 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-2026-21122?
CVE-2026-21122 is a high-severity memory corruption vulnerability in Samsung Mobile Devices, 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
Out-of-bounds write in libsamsungtts.so prior to SMR Oct-2026 Release 1 allows local attackers to execute arbitrary code.
Weakness: CWE-787
Which versions are affected by CVE-2026-21122?
How do I fix CVE-2026-21122?
No fix has been published for CVE-2026-21122 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-21122 being exploited?
There is no known exploitation of CVE-2026-21122 in the wild and no public exploit code.
Sources
Also known as GHSA-v8xc-q823-59gq.