---
id: CVE-2026-115680
title: "Arm Keil MDK-Middleware 8.0.0-8.3.0 may allow\_DHCPv6 Option-Walk Over-Reads and Unintended Data Retransmission"
summary: "Arm Keil MDK-Middleware 8.0.0-8.3.0 may allow\_DHCPv6 Option-Walk Over-Reads and Unintended Data Retransmission"
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'
cvssSource: adp
cwe:
  - CWE-125
vendor: Keil
product: MDK-Middleware
affected:
  - MDK-Middleware >= 8.0.0 <= 8.3.0
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-26T16:25:07.358490Z'
published: '2026-10-26'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T16:25:13.217Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-115680'
references:
  - url: 'https://support.arm.com/documentation/112560'
tags:
  - cve.org
ingestedAt: '2026-10-26T16:31:40.050Z'
epss: 0.00345
epssPercentile: 0.27803
---

## Overview

Arm Keil MDK-Middleware 8.0.0-8.3.0 may allow DHCPv6 Option-Walk Over-Reads and Unintended Data Retransmission

## Affected

- `MDK-Middleware >= 8.0.0 <= 8.3.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.