CVE-2026-21049 Memory corruption in Samsung Mobile Devices

High 8.4 Published Updated

Local attackers can execute arbitrary code via an out-of-bounds write in the libpadm.so library on Samsung mobile devices.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-21049?

CVE-2026-21049 is a high-severity memory corruption vulnerability in Samsung Mobile Devices, published on 10 Jul 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 libpadm.so library prior to SMR Jul-2026 Release 1 allows local attackers to execute arbitrary code.

Which versions are affected by CVE-2026-21049?

How do I fix CVE-2026-21049?

No fix has been published for CVE-2026-21049 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-2026-21049 being exploited?

There is no known exploitation of CVE-2026-21049 in the wild and no public exploit code.

Sources

Also known as GHSA-7p8c-622m-54g7.

Is CVE-2026-21049 in your software?

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