8.5
High
CVE-2026-95109 The Cortex-A7 MMU Modules port validates a caller-supplied buffer by translating **one address** — the first byte
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Eclipse ThreadX 6.5 | earliest → < 6.5.2.202603 | 6.5.2.202603 |
| Eclipse ThreadX 6.1 | 6.1 → 6.5.1.202602a | No fix stated |
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8.2
High