---
title: "CVE-2026-95109: Cortex-A7 MMU Modules - Broken Access Control"
description: "Cortex-A7 MMU Modules contain a memory protection bypass caused by validating only the first byte of a caller-supplied buffer, letting privileged dispatch code read or write beyond intended ranges, exploit requires privileged dispatch access."
url: https://panop.io/threat-heartbeat/CVE-2026-95109/
---

# CVE-2026-95109 Cortex-A7 MMU Modules - Broken Access Control

Cortex-A7 MMU Modules contain a memory protection bypass caused by validating only the first byte of a caller-supplied buffer, letting privileged dispatch code read or write beyond intended ranges, exploit requires privileged dispatch access.

CVSS base score 8.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-95109)

## Details

Type

Broken Access Control

Impact

Privilege Escalation, Data Tampering

CVSS vector

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Published

20 October 2026

Updated

21 October 2026

Weakness

[CWE-125](https://cwe.mitre.org/data/definitions/125.html)

## Vendor fix

Update to the latest version with proper range validation for buffers.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-95109](https://nvd.nist.gov/vuln/detail/CVE-2026-95109)
- [https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-fvp6-37q5-c648](https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-fvp6-37q5-c648)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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