CVE-2025-20915
Published: 06 March 2025
Summary
CVE-2025-20915 is a medium-severity Out-of-bounds Read (CWE-125) vulnerability in Samsung Notes. Its CVSS base score is 5.5 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Data from Local System (T1005); ranked at the 45.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-16 (Memory Protection) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Requires timely identification, reporting, and correction of software flaws like this out-of-bounds read vulnerability through patching Samsung Notes to version 4.4.26.71 or later.
Implements memory protection mechanisms such as bounds checking and isolation to directly prevent out-of-bounds memory reads during binary voice content processing.
Mandates validation of binary voice content inputs to mitigate malformed data that could trigger out-of-bounds reads in the Samsung Notes application.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Out-of-bounds read enables local memory disclosure of sensitive data from the device, directly facilitating data collection from local system sources.
NVD Description
Out-of-bounds read in applying binary of voice content in Samsung Notes prior to version 4.4.26.71 allows attackers to read out-of-bounds memory.
Deeper analysisAI
CVE-2025-20915 is an out-of-bounds read vulnerability (CWE-125) in the Samsung Notes application, occurring during the processing of binary voice content. It affects versions of Samsung Notes prior to 4.4.26.71 on compatible Samsung devices. The flaw enables attackers to access memory outside the intended boundaries, potentially exposing sensitive data.
Exploitation requires local access to the device (AV:L) with low privileges (PR:L), low attack complexity (AC:L), and no user interaction (UI:N). Successful attacks result in high confidentiality impact (C:H) through memory disclosure, with no integrity or availability disruption (CVSS 5.5: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N). Local users or malware with basic permissions could leverage this for information leakage.
Samsung's security advisory, published on 2025-03-06, details the vulnerability and mitigation at https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=03. Practitioners should recommend updating Samsung Notes to version 4.4.26.71 or later to address the issue.
Details
- CWE(s)