Samsung Notes 4.4.30.63: OOB write in SPI decoder (CVE-2025-21070)
CVE-2025-21070 Published on October 10, 2025

Out-of-bounds write in the SPI decoder in Samsung Notes prior to version 4.4.30.63 allows local attackers to write out-of-bounds memory.

NVD

Vulnerability Analysis

CVE-2025-21070 is exploitable with local system access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
LOW
Availability Impact:
NONE

Products Associated with CVE-2025-21070

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Samsung Notes
 

Affected Versions

Samsung Mobile Samsung Notes Version 4.4.30.63 is unaffected by CVE-2025-21070

Exploit Probability

EPSS
0.03%
Percentile
7.14%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.