CVE-2021-25495 Memory corruption in Samsung Notes

High 7.3 Published Updated

Heap buffer overflow in Samsung Notes allows arbitrary code execution, requiring users to upgrade the application.

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-2021-25495?

CVE-2021-25495 is a high-severity memory corruption vulnerability in Samsung Notes, published on 6 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A possible heap buffer overflow vulnerability in libSPenBase library of Samsung Notes prior to Samsung Note version 4.3.02.61 allows arbitrary code execution.

Weakness: CWE-787, CWE-122

Which versions are affected by CVE-2021-25495?

It affects 1 product.

Products include Samsung Notes.

How do I fix CVE-2021-25495?

No fix has been published for CVE-2021-25495 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-2021-25495 being exploited?

There is no known exploitation of CVE-2021-25495 in the wild and no public exploit code.

All Samsung Notes vulnerabilities

Sources

Also known as GHSA-8xx6-wgwv-844x.

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