Out-of-bounds memory read via invalid SPI input
Published Oct 10, 2025 · Updated Oct 10, 2025
Out-of-bounds read in Samsung Notes before 4.4.30.63 allows local users to access memory outside the SPI decoder's intended bounds. The SPI decoder processes data without adequate input validation, causing reads beyond the intended memory bounds. No account privilege or user interaction is required, but execution is local; published details do not identify the triggering SPI content or demonstrate code execution.
Summary
What happened
Out-of-bounds read in Samsung Notes before 4.4.30.63 allows local users to access memory outside the SPI decoder's intended bounds. The SPI decoder processes data without adequate input validation, causing reads beyond the intended memory bounds. No account privilege or user interaction is required, but execution is local; published details do not identify the triggering SPI content or demonstrate code execution.
The record
- CVE
- CVE-2025-21066
- Published
- Oct 10, 2025
- Updated
- Oct 10, 2025
- Vendor
- Samsung Electronics Co., Ltd.
- Product
- Samsung Notes
- Classifications
- CWE-125
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 10, 2025CVE publishedPublication date reported by the CVE source.
- Oct 10, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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