CVE-2025-21066 Information disclosure in Samsung Notes
Local attackers can read out-of-bounds memory in Samsung Notes via a flaw in the SPI decoder, potentially exposing sensitive data.
- 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-2025-21066?
CVE-2025-21066 is a medium-severity vulnerability in Samsung Notes, published on 10 Oct 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 the SPI decoder in Samsung Notes prior to version 4.4.30.63 allows local attackers to access out-of-bounds memory.
Weakness: CWE-125
Which versions are affected by CVE-2025-21066?
It affects 1 product.
Products include Samsung Notes.
How do I fix CVE-2025-21066?
No fix has been published for CVE-2025-21066 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-21066 being exploited?
There is no known exploitation of CVE-2025-21066 in the wild and no public exploit code.
Other vulnerabilities in Samsung Notes
Sources
Also known as GHSA-j9c2-v74p-cvf3.