EUVD-2026-69020
GHSA-g7vr-5j65-c83q
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Loading and triggering a Trusted Application requires at minimum low-privilege device access, warranting PR:L rather than PR:N; impact is TEE availability only with no confidentiality or integrity consequence.
Primary rating from Vendor (samsung.tv_appliance).
CVSS VectorVendor: samsung.tv_appliance
Lifecycle Timeline
4DescriptionCVE.org
Untrusted pointer dereference vulnerability in Samsung Open Source mTower allows Pointer Manipulation.
This issue affects mTower: before 102d3dc75cf8e58e68e4bea54ae3c803992c91be.
AnalysisAI
Pointer validation routines were systematically commented out across multiple TEE syscall handlers in Samsung's mTower open-source TEE implementation, leaving Trusted Application-supplied pointer arguments entirely unvalidated before dereference in the secure world. All mTower deployments on ARMv8-M hardware prior to commit 102d3dc75cf8e58e68e4bea54ae3c803992c91be are exposed to a denial-of-service condition whereby a malicious or buggy Trusted Application can crash the TEE by supplying address-space-wrapping pointer ranges to service calls in tee_svc.c and tee_svc_cryp.c. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the ability to load and execute a Trusted Application within the mTower TEE on the target ARMv8-M device - an attacker must either compromise the TA delivery channel, have physical device access, or exploit a secondary vulnerability enabling TA installation. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 5.5 (Medium) with a local attack vector and required user interaction appropriately reflects the preconditions necessary for exploitation - an attacker must already be positioned to load and trigger a Trusted Application within the TEE, which is a non-trivial barrier in a properly secured device. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | The upstream fix is available as GitHub pull request #252 at https://github.com/Samsung/mTower/pull/252, identified by commit 102d3dc75cf8e58e68e4bea54ae3c803992c91be; integrators should cherry-pick or merge this commit and rebuild affected firmware images. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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