Local out-of-bounds write via insufficient input validation
Published Aug 10, 2026 · Updated Aug 10, 2026
Improper input validation in libsmsd.so on Samsung Mobile Devices before SMR Aug-2026 Release 1 allows local users to write out-of-bounds memory. The library accepts an undisclosed local input without sufficient validation before a memory write; Samsung has not identified the affected function or input format. No prior privileges or separate user interaction are required, and successful exploitation corrupts memory beyond its intended boundary.
Summary
What happened
Improper input validation in libsmsd.so on Samsung Mobile Devices before SMR Aug-2026 Release 1 allows local users to write out-of-bounds memory. The library accepts an undisclosed local input without sufficient validation before a memory write; Samsung has not identified the affected function or input format. No prior privileges or separate user interaction are required, and successful exploitation corrupts memory beyond its intended boundary.
The record
- CVE
- CVE-2026-21067
- Published
- Aug 10, 2026
- Updated
- Aug 10, 2026
- Vendor
- Samsung Electronics Co., Ltd.
- Product
- Samsung Mobile Devices
- Classifications
- CWE-20
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 10, 2026CVE publishedPublication date reported by the CVE source.
- Aug 10, 2026Record 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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