Privileged out-of-bounds write via PROCA stack overflow
Published Sep 9, 2026 · Updated Sep 10, 2026
Stack-based buffer overflow in the PROCA trustlet in Samsung Mobile Devices on Android 14 through 17 allows local users to write out-of-bounds memory. Samsung identifies improper input validation in the PROCA trustlet as the cause but has not disclosed the affected function, input, or copy operation. Exploitation requires local high privileges and specific runtime conditions; the published impact is limited to out-of-bounds memory modification.
Summary
What happened
Stack-based buffer overflow in the PROCA trustlet in Samsung Mobile Devices on Android 14 through 17 allows local users to write out-of-bounds memory. Samsung identifies improper input validation in the PROCA trustlet as the cause but has not disclosed the affected function, input, or copy operation. Exploitation requires local high privileges and specific runtime conditions; the published impact is limited to out-of-bounds memory modification.
The record
- CVE
- CVE-2026-21093
- Published
- Sep 9, 2026
- Updated
- Sep 10, 2026
- Vendor
- Samsung Electronics Co., Ltd.
- Product
- Samsung Mobile Devices
- Classifications
- CWE-121
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Sep 9, 2026CVE publishedPublication date reported by the CVE source.
- Sep 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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