CVE-2025-20914
Published: 06 March 2025
Summary
CVE-2025-20914 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
Directly mitigates the out-of-bounds read vulnerability by requiring timely application of vendor patches, such as updating Samsung Notes to version 4.4.26.71 or later.
Implements memory protection mechanisms like address space layout randomization and guard pages to prevent exploitation of out-of-bounds memory reads in the handwriting content processing.
Requires validation of binary handwriting content inputs to detect and reject malformed data that could trigger the out-of-bounds read during application.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The out-of-bounds read in Samsung Notes enables local attackers to access sensitive memory content on the device, directly facilitating collection of data from local system sources.
NVD Description
Out-of-bounds read in applying binary of hand writing content in Samsung Notes prior to version 4.4.26.71 allows attackers to read out-of-bounds memory.
Deeper analysisAI
CVE-2025-20914 is an out-of-bounds read vulnerability (CWE-125) in the application of binary handwriting content within Samsung Notes versions prior to 4.4.26.71. Published on 2025-03-06 with a CVSS v3.1 base score of 5.5 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N), the flaw occurs during processing that exposes memory beyond allocated bounds.
Local attackers with low privileges on the affected device can exploit this vulnerability with low complexity and no user interaction required. Exploitation enables reading of sensitive out-of-bounds memory content, resulting in high confidentiality impact while leaving integrity and availability unaffected.
Samsung's security advisory at https://security.samsungmobile.com/serviceWeb.smsb?year=2025&month=03 provides details on the vulnerability, with mitigation achieved by updating Samsung Notes to version 4.4.26.71 or later.
Details
- CWE(s)