Security Resilience

CVE-2025-20914

Memory Safety in Samsung Notes ≤ 4.4.26.71

Published
06 March 2025
Modified
17 July 2025
Patch / advisory
CVSS Score v3.1 5.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0028 20th percentile
Risk Priority 42 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

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 Exploitation for Privilege Escalation (T1068); ranked at the 20th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-8 (Security and Privacy Engineering Principles) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

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.

EU & UK References

Vulnerability Data

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.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
T1211 Exploitation for Stealth Stealth
Adversaries may exploit vulnerabilities to evade detection by hiding activity, suppressing logging, or operating within trusted or unmonitored components.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-34628Same product: Samsung Notes
CVE-2024-34633Same product: Samsung Notes
CVE-2024-34621Same product: Samsung Notes
CVE-2025-21066Same product: Samsung Notes
CVE-2025-20927Same product: Samsung Notes
CVE-2025-20918Same product: Samsung Notes
CVE-2025-20928Same product: Samsung Notes
CVE-2024-34631Same product: Samsung Notes
CVE-2024-34630Same product: Samsung Notes
CVE-2025-20922Same product: Samsung Notes

Affected Assets

samsung
notes
≤ 4.4.26.71

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation directly finds out-of-bounds read flaws through static analysis, fuzzing, and dynamic bounds checks.

Secure engineering principles require bounds checking and memory-safe constructs that stop out-of-bounds reads from being introduced.

Process isolation confines the effects of an out-of-bounds read to the compromised process.

Input validation rejects malformed indices or lengths that would otherwise cause reads outside buffer bounds.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
blocks

Secure-development practices such as bounds checking and memory-safe languages directly prevent out-of-bounds reads.

ID.RA-01 partial match
blocks

Vulnerability scanning and recording can discover instances of out-of-bounds reads after code is deployed.

PR.PS-02 partial match
blocks

Routine patching replaces vulnerable code containing out-of-bounds read flaws.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

finds

Security testing in development and acceptance includes fuzzing and static analysis that detect out-of-bounds read defects before release.

prevents

Secure coding standards explicitly forbid unsafe pointer arithmetic and mandate bounds-checked reads, eliminating CWE-125.

References