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

Read the record on cve.org

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

CVSSScoreVectorSource
4.08.5 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Neclipse

Weaknesses

Affected Products

ProductVersions
Eclipse ThreadXEclipse Foundation
  • 6.1 through 6.5.1.202602aAffected
  • 6.5.2.202603Not affected

References

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