CVE-2025-20921 Information disclosure in Samsung Notes

Medium 5.5 Published Updated

Attackers can read out-of-bounds memory in Samsung Notes, potentially exposing sensitive data.

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-2025-20921?

CVE-2025-20921 is a medium-severity vulnerability in Samsung Notes, published on 6 Mar 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Out-of-bounds read in applying binary of text content in Samsung Notes prior to version 4.4.26.71 allows attackers to read out-of-bounds memory.

Weakness: CWE-125

Which versions are affected by CVE-2025-20921?

It affects 1 product.

Products include Samsung Notes.

How do I fix CVE-2025-20921?

No fix has been published for CVE-2025-20921 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-20921 being exploited?

There is no known exploitation of CVE-2025-20921 in the wild and no public exploit code.

All Samsung Notes vulnerabilities

Sources

Also known as GHSA-hrg5-27wv-98c8.

Is CVE-2025-20921 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free