Samsung Notes OOB Write v<4.4.45.5 (Local)
CVE-2026-21107 Published on September 9, 2026
Out-of-bounds write in Samsung Notes prior to version 4.4.45.5 allows local attackers to write out-of-bounds memory.
Vulnerability Analysis
CVE-2026-21107 can be exploited with local system access, and requires small amount of user privileges. 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 and integrity and availability.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2026-21107 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2026-21107
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Affected Versions
Samsung Mobile Samsung Notes:- Version 4.4.45.5 and below * is unaffected.