Local code execution via unchecked buffer write
Published Jul 10, 2026 · Updated Jul 10, 2026
Out-of-bounds write in libsavsac.so on Samsung Mobile Devices with Android 14 through 16 allows local users to execute arbitrary code. The library inadequately validates input before writing to a memory buffer, allowing data to cross the buffer boundary. Low-privileged local access is required, and Samsung has not disclosed the triggering input format or vulnerable function.
Summary
What happened
Out-of-bounds write in libsavsac.so on Samsung Mobile Devices with Android 14 through 16 allows local users to execute arbitrary code. The library inadequately validates input before writing to a memory buffer, allowing data to cross the buffer boundary. Low-privileged local access is required, and Samsung has not disclosed the triggering input format or vulnerable function.
The record
- CVE
- CVE-2026-21042
- Published
- Jul 10, 2026
- Updated
- Jul 10, 2026
- Vendor
- Samsung Electronics Co., Ltd.
- Product
- Samsung Mobile Devices
- Classifications
- CWE-787
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 10, 2026CVE publishedPublication date reported by the CVE source.
- Jul 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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