Secure-world crash via unchecked TA pointer ranges
Published Sep 1, 2026 · Updated Sep 1, 2026
Untrusted pointer dereference in Samsung mTower before 102d3dc75cf8e58e68e4bea54ae3c803992c91be allows local users to crash the secure world. Secure-kernel copy helpers and live crypto syscalls dereference or copy TA-supplied pointer ranges while their access-rights guards are disabled, permitting null or wrapping ranges to drive out-of-bounds secure-world copies. Exploitation requires a malicious or faulty trusted application to invoke the affected syscalls; the documented consequence is a secure-world crash without data disclosure or modification.
Summary
What happened
Untrusted pointer dereference in Samsung mTower before 102d3dc75cf8e58e68e4bea54ae3c803992c91be allows local users to crash the secure world. Secure-kernel copy helpers and live crypto syscalls dereference or copy TA-supplied pointer ranges while their access-rights guards are disabled, permitting null or wrapping ranges to drive out-of-bounds secure-world copies. Exploitation requires a malicious or faulty trusted application to invoke the affected syscalls; the documented consequence is a secure-world crash without data disclosure or modification.
The record
- CVE
- CVE-2026-10420
- Published
- Sep 1, 2026
- Updated
- Sep 1, 2026
- Vendor
- Samsung Electronics Co., Ltd.
- Product
- mTower
- Classifications
- CWE-822, T1499
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 1, 2026CVE publishedPublication date reported by the CVE source.
- Sep 1, 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?
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- Affected versionversion=0 <102d3dc75cf8e58e68e4bea54ae3c803992c91be
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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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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