CVE-2021-25372 Samsung Mobile Devices Improper Boundary Check

Exploited in the wild Medium 6.1 Published 26 Mar 2021 Updated 14 Jan 2026

An out-of-bounds memory access in the DSP driver allows attackers to execute arbitrary code or escalate privileges on Samsung mobile devices.

Exploited in the wild: Since 29 Jun 2023
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-25372?

CVE-2021-25372 is a medium-severity memory corruption vulnerability in Samsung Android, published on 26 Mar 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An improper boundary check in DSP driver prior to SMR Mar-2021 Release 1 allows out of bounds memory access.

Weakness: CWE-787, CWE-703

Which versions are affected by CVE-2021-25372?

It affects 1 product.

Products include Samsung Android.

How do I fix CVE-2021-25372?

No fix has been published for CVE-2021-25372 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 20 Jul 2023.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-25372 being exploited?

Yes. Attackers have exploited CVE-2021-25372 in the wild since at least 29 Jun 2023.

All Samsung Android vulnerabilities

Sources

Also known as GHSA-qvjg-564f-22c8.