HIGHCVSS v4 8.5Vulnerability

CVE-2026-95109

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.

Properties

Severity
HIGH
Nvd fetched at
2026-10-20T21:14:08.448323+00:00
Cvss severity
HIGH
Cvss score
8.5
Retrieved at
2026-10-20T21:15:35+00:00
Score
8.5
Cvss version
4.0
Last source
NVD
Cve id
CVE-2026-95109
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
First seen by Signal
2026-10-20T17:10:14+00:00
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 at
2026-10-20T16:17:18.533
Last modified
2026-10-20T19:48:50.250

Related Entities (2)

HAS_WEAKNESS (2)

→[Weakness]Out-of-bounds Write
→[Weakness]Out-of-bounds Read

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CVE-2026-95109 (CVSS v4 8.5) — Ninja Signal Threat Intelligence | Ninja Signal