CVE-2026-95109
Cortex-A7 module data validation checks only the first address of a caller-supplied range
- State
- Published
- Severity
- 8.5 High
- Published
- Oct 20, 2026
- Updated
- Oct 20, 2026
- Reserved
- Sep 23, 2026
Description
The Cortex-A7 MMU Modules port validates a caller-supplied buffer by translating **one address** — the first byte. The common Module Manager hands its range check the module instance, the start address and the complete byte size; the Cortex-A7 implementation discarded the instance and the size and asked the MMU a single question about the start.
A memory-protected module therefore passed any range whose first byte was user-readable, however far the rest of it reached. Privileged dispatch code then read or wrote the whole range. Because every protected-module dispatcher that consumes a buffer or an extra-parameter array goes through this one macro, the defect is not in any individual service: it is in the primitive all of them rely on.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.5 High | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | eclipse |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
Eclipse ThreadXEclipse Foundation |
|
References
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